721000228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{4337}}^1$

素因数の和:4516

約数の個数: 48

約数和(自身を含む): 1428416640

約数和(自身を除く): 707416412

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 139, 278, 299, 556, 598, 1196, 1807, 3197, 3614, 4337, 6394, 7228, 8674, 12788, 17348, 41561, 56381, 83122, 99751, 112762, 166244, 199502, 225524, 399004, 602843, 1205686, 1296763, 2411372, 2593526, 5187052, 7836959, 13865389, 15673918, 27730778, 31347836, 55461556, 180250057, 360500114, 721000228]

約数ペア:

[(1, 721000228), (2, 360500114), (4, 180250057), (13, 55461556), (23, 31347836), (26, 27730778), (46, 15673918), (52, 13865389), (92, 7836959), (139, 5187052), (278, 2593526), (299, 2411372), (556, 1296763), (598, 1205686), (1196, 602843), (1807, 399004), (3197, 225524), (3614, 199502), (4337, 166244), (6394, 112762), (7228, 99751), (8674, 83122), (12788, 56381), (17348, 41561)]