81443940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79847}}^1$

素因数の和:79876

約数の個数: 48

約数和(自身を含む): 241460352

約数和(自身を除く): 160016412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 79847, 159694, 239541, 319388, 399235, 479082, 798470, 958164, 1197705, 1357399, 1596940, 2395410, 2714798, 4072197, 4790820, 5429596, 6786995, 8144394, 13573990, 16288788, 20360985, 27147980, 40721970, 81443940]

約数ペア:

[(1, 81443940), (2, 40721970), (3, 27147980), (4, 20360985), (5, 16288788), (6, 13573990), (10, 8144394), (12, 6786995), (15, 5429596), (17, 4790820), (20, 4072197), (30, 2714798), (34, 2395410), (51, 1596940), (60, 1357399), (68, 1197705), (85, 958164), (102, 798470), (170, 479082), (204, 399235), (255, 319388), (340, 239541), (510, 159694), (1020, 79847)]