28130830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1627}}^1$

素因数の和:1673

約数の個数: 64

約数和(自身を含む): 65640960

約数和(自身を除く): 37510130

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1235, 1330, 1627, 1729, 2470, 3254, 3458, 8135, 8645, 11389, 16270, 17290, 21151, 22778, 30913, 42302, 56945, 61826, 105755, 113890, 148057, 154565, 211510, 216391, 296114, 309130, 401869, 432782, 740285, 803738, 1081955, 1480570, 2009345, 2163910, 2813083, 4018690, 5626166, 14065415, 28130830]

約数ペア:

[(1, 28130830), (2, 14065415), (5, 5626166), (7, 4018690), (10, 2813083), (13, 2163910), (14, 2009345), (19, 1480570), (26, 1081955), (35, 803738), (38, 740285), (65, 432782), (70, 401869), (91, 309130), (95, 296114), (130, 216391), (133, 211510), (182, 154565), (190, 148057), (247, 113890), (266, 105755), (455, 61826), (494, 56945), (665, 42302), (910, 30913), (1235, 22778), (1330, 21151), (1627, 17290), (1729, 16270), (2470, 11389), (3254, 8645), (3458, 8135)]