131220780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30803}}^1$

素因数の和:30886

約数の個数: 48

約数和(自身を含む): 372605184

約数和(自身を除く): 241384404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 30803, 61606, 92409, 123212, 154015, 184818, 308030, 369636, 462045, 616060, 924090, 1848180, 2187013, 4374026, 6561039, 8748052, 10935065, 13122078, 21870130, 26244156, 32805195, 43740260, 65610390, 131220780]

約数ペア:

[(1, 131220780), (2, 65610390), (3, 43740260), (4, 32805195), (5, 26244156), (6, 21870130), (10, 13122078), (12, 10935065), (15, 8748052), (20, 6561039), (30, 4374026), (60, 2187013), (71, 1848180), (142, 924090), (213, 616060), (284, 462045), (355, 369636), (426, 308030), (710, 184818), (852, 154015), (1065, 123212), (1420, 92409), (2130, 61606), (4260, 30803)]