248289720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 256

約数和(自身を含む): 917913600

約数和(自身を除く): 669623880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 47, 56, 57, 60, 70, 76, 84, 94, 95, 105, 114, 120, 133, 140, 141, 152, 168, 188, 190, 210, 228, 235, 266, 280, 282, 285, 329, 331, 376, 380, 399, 420, 456, 470, 532, 564, 570, 658, 662, 665, 705, 760, 798, 840, 893, 940, 987, 993, 1064, 1128, 1140, 1316, 1324, 1330, 1410, 1596, 1645, 1655, 1786, 1880, 1974, 1986, 1995, 2280, 2317, 2632, 2648, 2660, 2679, 2820, 3192, 3290, 3310, 3572, 3948, 3972, 3990, 4465, 4634, 4935, 4965, 5320, 5358, 5640, 6251, 6289, 6580, 6620, 6951, 7144, 7896, 7944, 7980, 8930, 9268, 9870, 9930, 10716, 11585, 12502, 12578, 13160, 13240, 13395, 13902, 15557, 15960, 17860, 18536, 18753, 18867, 19740, 19860, 21432, 23170, 25004, 25156, 26790, 27804, 31114, 31255, 31445, 34755, 35720, 37506, 37734, 39480, 39720, 44023, 46340, 46671, 50008, 50312, 53580, 55608, 62228, 62510, 62890, 69510, 75012, 75468, 77785, 88046, 92680, 93342, 93765, 94335, 107160, 108899, 124456, 125020, 125780, 132069, 139020, 150024, 150936, 155570, 176092, 186684, 187530, 188670, 217798, 220115, 233355, 250040, 251560, 264138, 278040, 295583, 311140, 326697, 352184, 373368, 375060, 377340, 435596, 440230, 466710, 528276, 544495, 591166, 622280, 653394, 660345, 750120, 754680, 871192, 880460, 886749, 933420, 1056552, 1088990, 1182332, 1306788, 1320690, 1477915, 1633485, 1760920, 1773498, 1866840, 2069081, 2177980, 2364664, 2613576, 2641380, 2955830, 3266970, 3546996, 4138162, 4355960, 4433745, 5282760, 5911660, 6207243, 6533940, 7093992, 8276324, 8867490, 10345405, 11823320, 12414486, 13067880, 16552648, 17734980, 20690810, 24828972, 31036215, 35469960, 41381620, 49657944, 62072430, 82763240, 124144860, 248289720]

約数ペア:

[(1, 248289720), (2, 124144860), (3, 82763240), (4, 62072430), (5, 49657944), (6, 41381620), (7, 35469960), (8, 31036215), (10, 24828972), (12, 20690810), (14, 17734980), (15, 16552648), (19, 13067880), (20, 12414486), (21, 11823320), (24, 10345405), (28, 8867490), (30, 8276324), (35, 7093992), (38, 6533940), (40, 6207243), (42, 5911660), (47, 5282760), (56, 4433745), (57, 4355960), (60, 4138162), (70, 3546996), (76, 3266970), (84, 2955830), (94, 2641380), (95, 2613576), (105, 2364664), (114, 2177980), (120, 2069081), (133, 1866840), (140, 1773498), (141, 1760920), (152, 1633485), (168, 1477915), (188, 1320690), (190, 1306788), (210, 1182332), (228, 1088990), (235, 1056552), (266, 933420), (280, 886749), (282, 880460), (285, 871192), (329, 754680), (331, 750120), (376, 660345), (380, 653394), (399, 622280), (420, 591166), (456, 544495), (470, 528276), (532, 466710), (564, 440230), (570, 435596), (658, 377340), (662, 375060), (665, 373368), (705, 352184), (760, 326697), (798, 311140), (840, 295583), (893, 278040), (940, 264138), (987, 251560), (993, 250040), (1064, 233355), (1128, 220115), (1140, 217798), (1316, 188670), (1324, 187530), (1330, 186684), (1410, 176092), (1596, 155570), (1645, 150936), (1655, 150024), (1786, 139020), (1880, 132069), (1974, 125780), (1986, 125020), (1995, 124456), (2280, 108899), (2317, 107160), (2632, 94335), (2648, 93765), (2660, 93342), (2679, 92680), (2820, 88046), (3192, 77785), (3290, 75468), (3310, 75012), (3572, 69510), (3948, 62890), (3972, 62510), (3990, 62228), (4465, 55608), (4634, 53580), (4935, 50312), (4965, 50008), (5320, 46671), (5358, 46340), (5640, 44023), (6251, 39720), (6289, 39480), (6580, 37734), (6620, 37506), (6951, 35720), (7144, 34755), (7896, 31445), (7944, 31255), (7980, 31114), (8930, 27804), (9268, 26790), (9870, 25156), (9930, 25004), (10716, 23170), (11585, 21432), (12502, 19860), (12578, 19740), (13160, 18867), (13240, 18753), (13395, 18536), (13902, 17860), (15557, 15960)]