215840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:105

約数の個数: 48

約数和(自身を含む): 544320

約数和(自身を除く): 328480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 71, 76, 80, 95, 142, 152, 160, 190, 284, 304, 355, 380, 568, 608, 710, 760, 1136, 1349, 1420, 1520, 2272, 2698, 2840, 3040, 5396, 5680, 6745, 10792, 11360, 13490, 21584, 26980, 43168, 53960, 107920, 215840]

約数ペア:

[(1, 215840), (2, 107920), (4, 53960), (5, 43168), (8, 26980), (10, 21584), (16, 13490), (19, 11360), (20, 10792), (32, 6745), (38, 5680), (40, 5396), (71, 3040), (76, 2840), (80, 2698), (95, 2272), (142, 1520), (152, 1420), (160, 1349), (190, 1136), (284, 760), (304, 710), (355, 608), (380, 568)]