123150920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:606

約数の個数: 64

約数和(自身を含む): 284394240

約数和(自身を除く): 161243320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 103, 142, 206, 284, 355, 412, 421, 515, 568, 710, 824, 842, 1030, 1420, 1684, 2060, 2105, 2840, 3368, 4120, 4210, 7313, 8420, 14626, 16840, 29252, 29891, 36565, 43363, 58504, 59782, 73130, 86726, 119564, 146260, 149455, 173452, 216815, 239128, 292520, 298910, 346904, 433630, 597820, 867260, 1195640, 1734520, 3078773, 6157546, 12315092, 15393865, 24630184, 30787730, 61575460, 123150920]

約数ペア:

[(1, 123150920), (2, 61575460), (4, 30787730), (5, 24630184), (8, 15393865), (10, 12315092), (20, 6157546), (40, 3078773), (71, 1734520), (103, 1195640), (142, 867260), (206, 597820), (284, 433630), (355, 346904), (412, 298910), (421, 292520), (515, 239128), (568, 216815), (710, 173452), (824, 149455), (842, 146260), (1030, 119564), (1420, 86726), (1684, 73130), (2060, 59782), (2105, 58504), (2840, 43363), (3368, 36565), (4120, 29891), (4210, 29252), (7313, 16840), (8420, 14626)]