30507920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20071}}^1$

素因数の和:20103

約数の個数: 40

約数和(自身を含む): 74667840

約数和(自身を除く): 44159920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20071, 40142, 80284, 100355, 160568, 200710, 321136, 381349, 401420, 762698, 802840, 1525396, 1605680, 1906745, 3050792, 3813490, 6101584, 7626980, 15253960, 30507920]

約数ペア:

[(1, 30507920), (2, 15253960), (4, 7626980), (5, 6101584), (8, 3813490), (10, 3050792), (16, 1906745), (19, 1605680), (20, 1525396), (38, 802840), (40, 762698), (76, 401420), (80, 381349), (95, 321136), (152, 200710), (190, 160568), (304, 100355), (380, 80284), (760, 40142), (1520, 20071)]