257489820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4007}}^1$

素因数の和:4049

約数の個数: 192

約数和(自身を含む): 969615360

約数和(自身を除く): 712125540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 153, 170, 180, 189, 204, 210, 238, 252, 255, 270, 306, 315, 340, 357, 378, 420, 459, 476, 510, 540, 595, 612, 630, 714, 756, 765, 918, 945, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 1836, 1890, 2142, 2295, 2380, 3060, 3213, 3570, 3780, 4007, 4284, 4590, 5355, 6426, 7140, 8014, 9180, 10710, 12021, 12852, 16028, 16065, 20035, 21420, 24042, 28049, 32130, 36063, 40070, 48084, 56098, 60105, 64260, 68119, 72126, 80140, 84147, 108189, 112196, 120210, 136238, 140245, 144252, 168294, 180315, 204357, 216378, 240420, 252441, 272476, 280490, 336588, 340595, 360630, 408714, 420735, 432756, 476833, 504882, 540945, 560980, 613071, 681190, 721260, 757323, 817428, 841470, 953666, 1009764, 1021785, 1081890, 1226142, 1262205, 1362380, 1430499, 1514646, 1682940, 1839213, 1907332, 2043570, 2163780, 2384165, 2452284, 2524410, 2860998, 3029292, 3065355, 3678426, 3786615, 4087140, 4291497, 4768330, 5048820, 5721996, 6130710, 7152495, 7356852, 7573230, 8582994, 9196065, 9536660, 12261420, 12874491, 14304990, 15146460, 17165988, 18392130, 21457485, 25748982, 28609980, 36784260, 42914970, 51497964, 64372455, 85829940, 128744910, 257489820]

約数ペア:

[(1, 257489820), (2, 128744910), (3, 85829940), (4, 64372455), (5, 51497964), (6, 42914970), (7, 36784260), (9, 28609980), (10, 25748982), (12, 21457485), (14, 18392130), (15, 17165988), (17, 15146460), (18, 14304990), (20, 12874491), (21, 12261420), (27, 9536660), (28, 9196065), (30, 8582994), (34, 7573230), (35, 7356852), (36, 7152495), (42, 6130710), (45, 5721996), (51, 5048820), (54, 4768330), (60, 4291497), (63, 4087140), (68, 3786615), (70, 3678426), (84, 3065355), (85, 3029292), (90, 2860998), (102, 2524410), (105, 2452284), (108, 2384165), (119, 2163780), (126, 2043570), (135, 1907332), (140, 1839213), (153, 1682940), (170, 1514646), (180, 1430499), (189, 1362380), (204, 1262205), (210, 1226142), (238, 1081890), (252, 1021785), (255, 1009764), (270, 953666), (306, 841470), (315, 817428), (340, 757323), (357, 721260), (378, 681190), (420, 613071), (459, 560980), (476, 540945), (510, 504882), (540, 476833), (595, 432756), (612, 420735), (630, 408714), (714, 360630), (756, 340595), (765, 336588), (918, 280490), (945, 272476), (1020, 252441), (1071, 240420), (1190, 216378), (1260, 204357), (1428, 180315), (1530, 168294), (1785, 144252), (1836, 140245), (1890, 136238), (2142, 120210), (2295, 112196), (2380, 108189), (3060, 84147), (3213, 80140), (3570, 72126), (3780, 68119), (4007, 64260), (4284, 60105), (4590, 56098), (5355, 48084), (6426, 40070), (7140, 36063), (8014, 32130), (9180, 28049), (10710, 24042), (12021, 21420), (12852, 20035), (16028, 16065)]