778975340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{272369}}^1$

素因数の和:272402

約数の個数: 48

約数和(自身を含む): 1921842720

約数和(自身を除く): 1142867380

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 272369, 544738, 1089476, 1361845, 2723690, 2996059, 3540797, 5447380, 5992118, 7081594, 11984236, 14163188, 14980295, 17703985, 29960590, 35407970, 38948767, 59921180, 70815940, 77897534, 155795068, 194743835, 389487670, 778975340]

約数ペア:

[(1, 778975340), (2, 389487670), (4, 194743835), (5, 155795068), (10, 77897534), (11, 70815940), (13, 59921180), (20, 38948767), (22, 35407970), (26, 29960590), (44, 17703985), (52, 14980295), (55, 14163188), (65, 11984236), (110, 7081594), (130, 5992118), (143, 5447380), (220, 3540797), (260, 2996059), (286, 2723690), (572, 1361845), (715, 1089476), (1430, 544738), (2860, 272369)]