42647980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 97549200

約数和(自身を除く): 54901220

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 139, 145, 230, 278, 290, 460, 529, 556, 580, 667, 695, 1058, 1334, 1390, 2116, 2645, 2668, 2780, 3197, 3335, 4031, 5290, 6394, 6670, 8062, 10580, 12788, 13340, 15341, 15985, 16124, 20155, 30682, 31970, 40310, 61364, 63940, 73531, 76705, 80620, 92713, 147062, 153410, 185426, 294124, 306820, 367655, 370852, 463565, 735310, 927130, 1470620, 1854260, 2132399, 4264798, 8529596, 10661995, 21323990, 42647980]

約数ペア:

[(1, 42647980), (2, 21323990), (4, 10661995), (5, 8529596), (10, 4264798), (20, 2132399), (23, 1854260), (29, 1470620), (46, 927130), (58, 735310), (92, 463565), (115, 370852), (116, 367655), (139, 306820), (145, 294124), (230, 185426), (278, 153410), (290, 147062), (460, 92713), (529, 80620), (556, 76705), (580, 73531), (667, 63940), (695, 61364), (1058, 40310), (1334, 31970), (1390, 30682), (2116, 20155), (2645, 16124), (2668, 15985), (2780, 15341), (3197, 13340), (3335, 12788), (4031, 10580), (5290, 8062), (6394, 6670)]