861780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 2467584

約数和(自身を除く): 1605804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 271, 318, 530, 542, 636, 795, 813, 1060, 1084, 1355, 1590, 1626, 2710, 3180, 3252, 4065, 5420, 8130, 14363, 16260, 28726, 43089, 57452, 71815, 86178, 143630, 172356, 215445, 287260, 430890, 861780]

約数ペア:

[(1, 861780), (2, 430890), (3, 287260), (4, 215445), (5, 172356), (6, 143630), (10, 86178), (12, 71815), (15, 57452), (20, 43089), (30, 28726), (53, 16260), (60, 14363), (106, 8130), (159, 5420), (212, 4065), (265, 3252), (271, 3180), (318, 2710), (530, 1626), (542, 1590), (636, 1355), (795, 1084), (813, 1060)]