2151560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 5143500

約数和(自身を除く): 2991940

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 298, 361, 380, 596, 722, 745, 760, 1192, 1444, 1490, 1805, 2831, 2888, 2980, 3610, 5662, 5960, 7220, 11324, 14155, 14440, 22648, 28310, 53789, 56620, 107578, 113240, 215156, 268945, 430312, 537890, 1075780, 2151560]

約数ペア:

[(1, 2151560), (2, 1075780), (4, 537890), (5, 430312), (8, 268945), (10, 215156), (19, 113240), (20, 107578), (38, 56620), (40, 53789), (76, 28310), (95, 22648), (149, 14440), (152, 14155), (190, 11324), (298, 7220), (361, 5960), (380, 5662), (596, 3610), (722, 2980), (745, 2888), (760, 2831), (1192, 1805), (1444, 1490)]