20206030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 42674688

約数和(自身を除く): 22468658

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 41, 65, 82, 85, 130, 170, 205, 221, 223, 410, 442, 446, 533, 697, 1066, 1105, 1115, 1394, 2210, 2230, 2665, 2899, 3485, 3791, 5330, 5798, 6970, 7582, 9061, 9143, 14495, 18122, 18286, 18955, 28990, 37910, 45305, 45715, 49283, 90610, 91430, 98566, 118859, 155431, 237718, 246415, 310862, 492830, 594295, 777155, 1188590, 1554310, 2020603, 4041206, 10103015, 20206030]

約数ペア:

[(1, 20206030), (2, 10103015), (5, 4041206), (10, 2020603), (13, 1554310), (17, 1188590), (26, 777155), (34, 594295), (41, 492830), (65, 310862), (82, 246415), (85, 237718), (130, 155431), (170, 118859), (205, 98566), (221, 91430), (223, 90610), (410, 49283), (442, 45715), (446, 45305), (533, 37910), (697, 28990), (1066, 18955), (1105, 18286), (1115, 18122), (1394, 14495), (2210, 9143), (2230, 9061), (2665, 7582), (2899, 6970), (3485, 5798), (3791, 5330)]