81642548

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 166017600

約数和(自身を除く): 84375052

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 59, 89, 92, 118, 169, 178, 236, 299, 338, 356, 598, 676, 767, 1157, 1196, 1357, 1534, 2047, 2314, 2714, 3068, 3887, 4094, 4628, 5251, 5428, 7774, 8188, 9971, 10502, 15041, 15548, 17641, 19942, 21004, 26611, 30082, 35282, 39884, 53222, 60164, 68263, 70564, 106444, 120773, 136526, 229333, 241546, 273052, 345943, 458666, 483092, 691886, 887419, 917332, 1383772, 1570049, 1774838, 3140098, 3549676, 6280196, 20410637, 40821274, 81642548]

約数ペア:

[(1, 81642548), (2, 40821274), (4, 20410637), (13, 6280196), (23, 3549676), (26, 3140098), (46, 1774838), (52, 1570049), (59, 1383772), (89, 917332), (92, 887419), (118, 691886), (169, 483092), (178, 458666), (236, 345943), (299, 273052), (338, 241546), (356, 229333), (598, 136526), (676, 120773), (767, 106444), (1157, 70564), (1196, 68263), (1357, 60164), (1534, 53222), (2047, 39884), (2314, 35282), (2714, 30082), (3068, 26611), (3887, 21004), (4094, 19942), (4628, 17641), (5251, 15548), (5428, 15041), (7774, 10502), (8188, 9971)]