72281120

素因数分解:

$2^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1667}}^1$

素因数の和:1953

約数の個数: 48

約数和(自身を含む): 171497088

約数和(自身を除く): 99215968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 271, 542, 1084, 1355, 1667, 2168, 2710, 3334, 4336, 5420, 6668, 8335, 8672, 10840, 13336, 16670, 21680, 26672, 33340, 43360, 53344, 66680, 133360, 266720, 451757, 903514, 1807028, 2258785, 3614056, 4517570, 7228112, 9035140, 14456224, 18070280, 36140560, 72281120]

約数ペア:

[(1, 72281120), (2, 36140560), (4, 18070280), (5, 14456224), (8, 9035140), (10, 7228112), (16, 4517570), (20, 3614056), (32, 2258785), (40, 1807028), (80, 903514), (160, 451757), (271, 266720), (542, 133360), (1084, 66680), (1355, 53344), (1667, 43360), (2168, 33340), (2710, 26672), (3334, 21680), (4336, 16670), (5420, 13336), (6668, 10840), (8335, 8672)]