16481860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 36232560

約数和(自身を除く): 19750700

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 181, 290, 314, 362, 580, 628, 724, 785, 905, 1570, 1810, 3140, 3620, 4553, 5249, 9106, 10498, 18212, 20996, 22765, 26245, 28417, 45530, 52490, 56834, 91060, 104980, 113668, 142085, 284170, 568340, 824093, 1648186, 3296372, 4120465, 8240930, 16481860]

約数ペア:

[(1, 16481860), (2, 8240930), (4, 4120465), (5, 3296372), (10, 1648186), (20, 824093), (29, 568340), (58, 284170), (116, 142085), (145, 113668), (157, 104980), (181, 91060), (290, 56834), (314, 52490), (362, 45530), (580, 28417), (628, 26245), (724, 22765), (785, 20996), (905, 18212), (1570, 10498), (1810, 9106), (3140, 5249), (3620, 4553)]