18925660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{877}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 43366176

約数和(自身を除く): 24440516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 83, 130, 166, 260, 332, 415, 830, 877, 1079, 1660, 1754, 2158, 3508, 4316, 4385, 5395, 8770, 10790, 11401, 17540, 21580, 22802, 45604, 57005, 72791, 114010, 145582, 228020, 291164, 363955, 727910, 946283, 1455820, 1892566, 3785132, 4731415, 9462830, 18925660]

約数ペア:

[(1, 18925660), (2, 9462830), (4, 4731415), (5, 3785132), (10, 1892566), (13, 1455820), (20, 946283), (26, 727910), (52, 363955), (65, 291164), (83, 228020), (130, 145582), (166, 114010), (260, 72791), (332, 57005), (415, 45604), (830, 22802), (877, 21580), (1079, 17540), (1660, 11401), (1754, 10790), (2158, 8770), (3508, 5395), (4316, 4385)]