71972520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 228614400

約数和(自身を除く): 156641880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 89, 92, 115, 120, 138, 178, 184, 230, 267, 276, 293, 345, 356, 445, 460, 534, 552, 586, 690, 712, 879, 890, 920, 1068, 1172, 1335, 1380, 1465, 1758, 1780, 2047, 2136, 2344, 2670, 2760, 2930, 3516, 3560, 4094, 4395, 5340, 5860, 6141, 6739, 7032, 8188, 8790, 10235, 10680, 11720, 12282, 13478, 16376, 17580, 20217, 20470, 24564, 26077, 26956, 30705, 33695, 35160, 40434, 40940, 49128, 52154, 53912, 61410, 67390, 78231, 80868, 81880, 101085, 104308, 122820, 130385, 134780, 156462, 161736, 202170, 208616, 245640, 260770, 269560, 312924, 391155, 404340, 521540, 599771, 625848, 782310, 808680, 1043080, 1199542, 1564620, 1799313, 2399084, 2998855, 3129240, 3598626, 4798168, 5997710, 7197252, 8996565, 11995420, 14394504, 17993130, 23990840, 35986260, 71972520]

約数ペア:

[(1, 71972520), (2, 35986260), (3, 23990840), (4, 17993130), (5, 14394504), (6, 11995420), (8, 8996565), (10, 7197252), (12, 5997710), (15, 4798168), (20, 3598626), (23, 3129240), (24, 2998855), (30, 2399084), (40, 1799313), (46, 1564620), (60, 1199542), (69, 1043080), (89, 808680), (92, 782310), (115, 625848), (120, 599771), (138, 521540), (178, 404340), (184, 391155), (230, 312924), (267, 269560), (276, 260770), (293, 245640), (345, 208616), (356, 202170), (445, 161736), (460, 156462), (534, 134780), (552, 130385), (586, 122820), (690, 104308), (712, 101085), (879, 81880), (890, 80868), (920, 78231), (1068, 67390), (1172, 61410), (1335, 53912), (1380, 52154), (1465, 49128), (1758, 40940), (1780, 40434), (2047, 35160), (2136, 33695), (2344, 30705), (2670, 26956), (2760, 26077), (2930, 24564), (3516, 20470), (3560, 20217), (4094, 17580), (4395, 16376), (5340, 13478), (5860, 12282), (6141, 11720), (6739, 10680), (7032, 10235), (8188, 8790)]