78706940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{17807}}^1$

素因数の和:17846

約数の個数: 48

約数和(自身を含む): 188479872

約数和(自身を除く): 109772932

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 17807, 35614, 71228, 89035, 178070, 231491, 302719, 356140, 462982, 605438, 925964, 1157455, 1210876, 1513595, 2314910, 3027190, 3935347, 4629820, 6054380, 7870694, 15741388, 19676735, 39353470, 78706940]

約数ペア:

[(1, 78706940), (2, 39353470), (4, 19676735), (5, 15741388), (10, 7870694), (13, 6054380), (17, 4629820), (20, 3935347), (26, 3027190), (34, 2314910), (52, 1513595), (65, 1210876), (68, 1157455), (85, 925964), (130, 605438), (170, 462982), (221, 356140), (260, 302719), (340, 231491), (442, 178070), (884, 89035), (1105, 71228), (2210, 35614), (4420, 17807)]