81580980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2551}}^1$

素因数の和:2617

約数の個数: 96

約数和(自身を含む): 252096768

約数和(自身を除く): 170515788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 41, 52, 60, 65, 78, 82, 123, 130, 156, 164, 195, 205, 246, 260, 390, 410, 492, 533, 615, 780, 820, 1066, 1230, 1599, 2132, 2460, 2551, 2665, 3198, 5102, 5330, 6396, 7653, 7995, 10204, 10660, 12755, 15306, 15990, 25510, 30612, 31980, 33163, 38265, 51020, 66326, 76530, 99489, 104591, 132652, 153060, 165815, 198978, 209182, 313773, 331630, 397956, 418364, 497445, 522955, 627546, 663260, 994890, 1045910, 1255092, 1359683, 1568865, 1989780, 2091820, 2719366, 3137730, 4079049, 5438732, 6275460, 6798415, 8158098, 13596830, 16316196, 20395245, 27193660, 40790490, 81580980]

約数ペア:

[(1, 81580980), (2, 40790490), (3, 27193660), (4, 20395245), (5, 16316196), (6, 13596830), (10, 8158098), (12, 6798415), (13, 6275460), (15, 5438732), (20, 4079049), (26, 3137730), (30, 2719366), (39, 2091820), (41, 1989780), (52, 1568865), (60, 1359683), (65, 1255092), (78, 1045910), (82, 994890), (123, 663260), (130, 627546), (156, 522955), (164, 497445), (195, 418364), (205, 397956), (246, 331630), (260, 313773), (390, 209182), (410, 198978), (492, 165815), (533, 153060), (615, 132652), (780, 104591), (820, 99489), (1066, 76530), (1230, 66326), (1599, 51020), (2132, 38265), (2460, 33163), (2551, 31980), (2665, 30612), (3198, 25510), (5102, 15990), (5330, 15306), (6396, 12755), (7653, 10660), (7995, 10204)]