19800480

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 192

約数和(自身を含む): 73156608

約数和(自身を除く): 53356128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 71, 80, 83, 84, 96, 105, 112, 120, 140, 142, 160, 166, 168, 210, 213, 224, 240, 249, 280, 284, 332, 336, 355, 415, 420, 426, 480, 497, 498, 560, 568, 581, 664, 672, 710, 830, 840, 852, 994, 996, 1065, 1120, 1136, 1162, 1245, 1328, 1420, 1491, 1660, 1680, 1704, 1743, 1988, 1992, 2130, 2272, 2324, 2485, 2490, 2656, 2840, 2905, 2982, 3320, 3360, 3408, 3486, 3976, 3984, 4260, 4648, 4970, 4980, 5680, 5810, 5893, 5964, 6640, 6816, 6972, 7455, 7952, 7968, 8520, 8715, 9296, 9940, 9960, 11360, 11620, 11786, 11928, 13280, 13944, 14910, 15904, 17040, 17430, 17679, 18592, 19880, 19920, 23240, 23572, 23856, 27888, 29465, 29820, 34080, 34860, 35358, 39760, 39840, 41251, 46480, 47144, 47712, 55776, 58930, 59640, 69720, 70716, 79520, 82502, 88395, 92960, 94288, 117860, 119280, 123753, 139440, 141432, 165004, 176790, 188576, 206255, 235720, 238560, 247506, 278880, 282864, 330008, 353580, 412510, 471440, 495012, 565728, 618765, 660016, 707160, 825020, 942880, 990024, 1237530, 1320032, 1414320, 1650040, 1980048, 2475060, 2828640, 3300080, 3960096, 4950120, 6600160, 9900240, 19800480]

約数ペア:

[(1, 19800480), (2, 9900240), (3, 6600160), (4, 4950120), (5, 3960096), (6, 3300080), (7, 2828640), (8, 2475060), (10, 1980048), (12, 1650040), (14, 1414320), (15, 1320032), (16, 1237530), (20, 990024), (21, 942880), (24, 825020), (28, 707160), (30, 660016), (32, 618765), (35, 565728), (40, 495012), (42, 471440), (48, 412510), (56, 353580), (60, 330008), (70, 282864), (71, 278880), (80, 247506), (83, 238560), (84, 235720), (96, 206255), (105, 188576), (112, 176790), (120, 165004), (140, 141432), (142, 139440), (160, 123753), (166, 119280), (168, 117860), (210, 94288), (213, 92960), (224, 88395), (240, 82502), (249, 79520), (280, 70716), (284, 69720), (332, 59640), (336, 58930), (355, 55776), (415, 47712), (420, 47144), (426, 46480), (480, 41251), (497, 39840), (498, 39760), (560, 35358), (568, 34860), (581, 34080), (664, 29820), (672, 29465), (710, 27888), (830, 23856), (840, 23572), (852, 23240), (994, 19920), (996, 19880), (1065, 18592), (1120, 17679), (1136, 17430), (1162, 17040), (1245, 15904), (1328, 14910), (1420, 13944), (1491, 13280), (1660, 11928), (1680, 11786), (1704, 11620), (1743, 11360), (1988, 9960), (1992, 9940), (2130, 9296), (2272, 8715), (2324, 8520), (2485, 7968), (2490, 7952), (2656, 7455), (2840, 6972), (2905, 6816), (2982, 6640), (3320, 5964), (3360, 5893), (3408, 5810), (3486, 5680), (3976, 4980), (3984, 4970), (4260, 4648)]