61987940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1537

約数の個数: 72

約数和(自身を含む): 155054592

約数和(自身を除く): 93066652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1471, 1505, 2107, 2942, 3010, 4214, 5884, 6020, 7355, 8428, 10297, 10535, 14710, 20594, 21070, 29420, 41188, 42140, 51485, 63253, 72079, 102970, 126506, 144158, 205940, 253012, 288316, 316265, 360395, 442771, 632530, 720790, 885542, 1265060, 1441580, 1771084, 2213855, 3099397, 4427710, 6198794, 8855420, 12397588, 15496985, 30993970, 61987940]

約数ペア:

[(1, 61987940), (2, 30993970), (4, 15496985), (5, 12397588), (7, 8855420), (10, 6198794), (14, 4427710), (20, 3099397), (28, 2213855), (35, 1771084), (43, 1441580), (49, 1265060), (70, 885542), (86, 720790), (98, 632530), (140, 442771), (172, 360395), (196, 316265), (215, 288316), (245, 253012), (301, 205940), (430, 144158), (490, 126506), (602, 102970), (860, 72079), (980, 63253), (1204, 51485), (1471, 42140), (1505, 41188), (2107, 29420), (2942, 21070), (3010, 20594), (4214, 14710), (5884, 10535), (6020, 10297), (7355, 8428)]