123422480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81199}}^1$

素因数の和:81231

約数の個数: 40

約数和(自身を含む): 302064000

約数和(自身を除く): 178641520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 81199, 162398, 324796, 405995, 649592, 811990, 1299184, 1542781, 1623980, 3085562, 3247960, 6171124, 6495920, 7713905, 12342248, 15427810, 24684496, 30855620, 61711240, 123422480]

約数ペア:

[(1, 123422480), (2, 61711240), (4, 30855620), (5, 24684496), (8, 15427810), (10, 12342248), (16, 7713905), (19, 6495920), (20, 6171124), (38, 3247960), (40, 3085562), (76, 1623980), (80, 1542781), (95, 1299184), (152, 811990), (190, 649592), (304, 405995), (380, 324796), (760, 162398), (1520, 81199)]