831220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 1975680

約数和(自身を除く): 1144460

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 139, 230, 260, 278, 299, 460, 556, 598, 695, 1196, 1390, 1495, 1807, 2780, 2990, 3197, 3614, 5980, 6394, 7228, 9035, 12788, 15985, 18070, 31970, 36140, 41561, 63940, 83122, 166244, 207805, 415610, 831220]

約数ペア:

[(1, 831220), (2, 415610), (4, 207805), (5, 166244), (10, 83122), (13, 63940), (20, 41561), (23, 36140), (26, 31970), (46, 18070), (52, 15985), (65, 12788), (92, 9035), (115, 7228), (130, 6394), (139, 5980), (230, 3614), (260, 3197), (278, 2990), (299, 2780), (460, 1807), (556, 1495), (598, 1390), (695, 1196)]