20197680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3659}}^1$

素因数の和:3698

約数の個数: 80

約数和(自身を含む): 65352960

約数和(自身を除く): 45155280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3659, 5520, 7318, 10977, 14636, 18295, 21954, 29272, 36590, 43908, 54885, 58544, 73180, 84157, 87816, 109770, 146360, 168314, 175632, 219540, 252471, 292720, 336628, 420785, 439080, 504942, 673256, 841570, 878160, 1009884, 1262355, 1346512, 1683140, 2019768, 2524710, 3366280, 4039536, 5049420, 6732560, 10098840, 20197680]

約数ペア:

[(1, 20197680), (2, 10098840), (3, 6732560), (4, 5049420), (5, 4039536), (6, 3366280), (8, 2524710), (10, 2019768), (12, 1683140), (15, 1346512), (16, 1262355), (20, 1009884), (23, 878160), (24, 841570), (30, 673256), (40, 504942), (46, 439080), (48, 420785), (60, 336628), (69, 292720), (80, 252471), (92, 219540), (115, 175632), (120, 168314), (138, 146360), (184, 109770), (230, 87816), (240, 84157), (276, 73180), (345, 58544), (368, 54885), (460, 43908), (552, 36590), (690, 29272), (920, 21954), (1104, 18295), (1380, 14636), (1840, 10977), (2760, 7318), (3659, 5520)]