71290700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 180821760

約数和(自身を除く): 109531060

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 31, 50, 52, 58, 61, 62, 65, 100, 116, 122, 124, 130, 145, 155, 244, 260, 290, 305, 310, 325, 377, 403, 580, 610, 620, 650, 725, 754, 775, 793, 806, 899, 1220, 1300, 1450, 1508, 1525, 1550, 1586, 1612, 1769, 1798, 1885, 1891, 2015, 2900, 3050, 3100, 3172, 3538, 3596, 3770, 3782, 3965, 4030, 4495, 6100, 7076, 7540, 7564, 7930, 8060, 8845, 8990, 9425, 9455, 10075, 11687, 15860, 17690, 17980, 18850, 18910, 19825, 20150, 22475, 22997, 23374, 24583, 35380, 37700, 37820, 39650, 40300, 44225, 44950, 45994, 46748, 47275, 49166, 54839, 58435, 79300, 88450, 89900, 91988, 94550, 98332, 109678, 114985, 116870, 122915, 176900, 189100, 219356, 229970, 233740, 245830, 274195, 292175, 459940, 491660, 548390, 574925, 584350, 614575, 712907, 1096780, 1149850, 1168700, 1229150, 1370975, 1425814, 2299700, 2458300, 2741950, 2851628, 3564535, 5483900, 7129070, 14258140, 17822675, 35645350, 71290700]

約数ペア:

[(1, 71290700), (2, 35645350), (4, 17822675), (5, 14258140), (10, 7129070), (13, 5483900), (20, 3564535), (25, 2851628), (26, 2741950), (29, 2458300), (31, 2299700), (50, 1425814), (52, 1370975), (58, 1229150), (61, 1168700), (62, 1149850), (65, 1096780), (100, 712907), (116, 614575), (122, 584350), (124, 574925), (130, 548390), (145, 491660), (155, 459940), (244, 292175), (260, 274195), (290, 245830), (305, 233740), (310, 229970), (325, 219356), (377, 189100), (403, 176900), (580, 122915), (610, 116870), (620, 114985), (650, 109678), (725, 98332), (754, 94550), (775, 91988), (793, 89900), (806, 88450), (899, 79300), (1220, 58435), (1300, 54839), (1450, 49166), (1508, 47275), (1525, 46748), (1550, 45994), (1586, 44950), (1612, 44225), (1769, 40300), (1798, 39650), (1885, 37820), (1891, 37700), (2015, 35380), (2900, 24583), (3050, 23374), (3100, 22997), (3172, 22475), (3538, 20150), (3596, 19825), (3770, 18910), (3782, 18850), (3965, 17980), (4030, 17690), (4495, 15860), (6100, 11687), (7076, 10075), (7540, 9455), (7564, 9425), (7930, 8990), (8060, 8845)]