201651970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:571

約数の個数: 64

約数和(自身を含む): 404974080

約数和(自身を除く): 203322110

約数列:

[1, 2, 5, 10, 13, 26, 59, 61, 65, 118, 122, 130, 295, 305, 431, 590, 610, 767, 793, 862, 1534, 1586, 2155, 3599, 3835, 3965, 4310, 5603, 7198, 7670, 7930, 11206, 17995, 25429, 26291, 28015, 35990, 46787, 50858, 52582, 56030, 93574, 127145, 131455, 233935, 254290, 262910, 330577, 341783, 467870, 661154, 683566, 1551169, 1652885, 1708915, 3102338, 3305770, 3417830, 7755845, 15511690, 20165197, 40330394, 100825985, 201651970]

約数ペア:

[(1, 201651970), (2, 100825985), (5, 40330394), (10, 20165197), (13, 15511690), (26, 7755845), (59, 3417830), (61, 3305770), (65, 3102338), (118, 1708915), (122, 1652885), (130, 1551169), (295, 683566), (305, 661154), (431, 467870), (590, 341783), (610, 330577), (767, 262910), (793, 254290), (862, 233935), (1534, 131455), (1586, 127145), (2155, 93574), (3599, 56030), (3835, 52582), (3965, 50858), (4310, 46787), (5603, 35990), (7198, 28015), (7670, 26291), (7930, 25429), (11206, 17995)]