647622320

素因数分解:

$2^4\times 5^1\times {\mathrm{2339}}^1\times {\mathrm{3461}}^1$

素因数の和:5813

約数の個数: 40

約数和(自身を含む): 1506800880

約数和(自身を除く): 859178560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2339, 3461, 4678, 6922, 9356, 11695, 13844, 17305, 18712, 23390, 27688, 34610, 37424, 46780, 55376, 69220, 93560, 138440, 187120, 276880, 8095279, 16190558, 32381116, 40476395, 64762232, 80952790, 129524464, 161905580, 323811160, 647622320]

約数ペア:

[(1, 647622320), (2, 323811160), (4, 161905580), (5, 129524464), (8, 80952790), (10, 64762232), (16, 40476395), (20, 32381116), (40, 16190558), (80, 8095279), (2339, 276880), (3461, 187120), (4678, 138440), (6922, 93560), (9356, 69220), (11695, 55376), (13844, 46780), (17305, 37424), (18712, 34610), (23390, 27688)]