72040020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4861}}^1$

素因数の和:4905

約数の個数: 96

約数和(自身を含む): 228708480

約数和(自身を除く): 156668460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1482, 2470, 2964, 3705, 4861, 4940, 7410, 9722, 14583, 14820, 19444, 24305, 29166, 48610, 58332, 63193, 72915, 92359, 97220, 126386, 145830, 184718, 189579, 252772, 277077, 291660, 315965, 369436, 379158, 461795, 554154, 631930, 758316, 923590, 947895, 1108308, 1200667, 1263860, 1385385, 1847180, 1895790, 2401334, 2770770, 3602001, 3791580, 4802668, 5541540, 6003335, 7204002, 12006670, 14408004, 18010005, 24013340, 36020010, 72040020]

約数ペア:

[(1, 72040020), (2, 36020010), (3, 24013340), (4, 18010005), (5, 14408004), (6, 12006670), (10, 7204002), (12, 6003335), (13, 5541540), (15, 4802668), (19, 3791580), (20, 3602001), (26, 2770770), (30, 2401334), (38, 1895790), (39, 1847180), (52, 1385385), (57, 1263860), (60, 1200667), (65, 1108308), (76, 947895), (78, 923590), (95, 758316), (114, 631930), (130, 554154), (156, 461795), (190, 379158), (195, 369436), (228, 315965), (247, 291660), (260, 277077), (285, 252772), (380, 189579), (390, 184718), (494, 145830), (570, 126386), (741, 97220), (780, 92359), (988, 72915), (1140, 63193), (1235, 58332), (1482, 48610), (2470, 29166), (2964, 24305), (3705, 19444), (4861, 14820), (4940, 14583), (7410, 9722)]