16176820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 39019680

約数和(自身を除く): 22842860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 139, 220, 230, 253, 278, 460, 506, 529, 556, 695, 1012, 1058, 1265, 1390, 1529, 2116, 2530, 2645, 2780, 3058, 3197, 5060, 5290, 5819, 6116, 6394, 7645, 10580, 11638, 12788, 15290, 15985, 23276, 29095, 30580, 31970, 35167, 58190, 63940, 70334, 73531, 116380, 140668, 147062, 175835, 294124, 351670, 367655, 703340, 735310, 808841, 1470620, 1617682, 3235364, 4044205, 8088410, 16176820]

約数ペア:

[(1, 16176820), (2, 8088410), (4, 4044205), (5, 3235364), (10, 1617682), (11, 1470620), (20, 808841), (22, 735310), (23, 703340), (44, 367655), (46, 351670), (55, 294124), (92, 175835), (110, 147062), (115, 140668), (139, 116380), (220, 73531), (230, 70334), (253, 63940), (278, 58190), (460, 35167), (506, 31970), (529, 30580), (556, 29095), (695, 23276), (1012, 15985), (1058, 15290), (1265, 12788), (1390, 11638), (1529, 10580), (2116, 7645), (2530, 6394), (2645, 6116), (2780, 5819), (3058, 5290), (3197, 5060)]