81965130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2879}}^1$

素因数の和:2975

約数の個数: 64

約数和(自身を含む): 214824960

約数和(自身を除く): 132859830

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 130, 146, 195, 219, 365, 390, 438, 730, 949, 1095, 1898, 2190, 2847, 2879, 4745, 5694, 5758, 8637, 9490, 14235, 14395, 17274, 28470, 28790, 37427, 43185, 74854, 86370, 112281, 187135, 210167, 224562, 374270, 420334, 561405, 630501, 1050835, 1122810, 1261002, 2101670, 2732171, 3152505, 5464342, 6305010, 8196513, 13660855, 16393026, 27321710, 40982565, 81965130]

約数ペア:

[(1, 81965130), (2, 40982565), (3, 27321710), (5, 16393026), (6, 13660855), (10, 8196513), (13, 6305010), (15, 5464342), (26, 3152505), (30, 2732171), (39, 2101670), (65, 1261002), (73, 1122810), (78, 1050835), (130, 630501), (146, 561405), (195, 420334), (219, 374270), (365, 224562), (390, 210167), (438, 187135), (730, 112281), (949, 86370), (1095, 74854), (1898, 43185), (2190, 37427), (2847, 28790), (2879, 28470), (4745, 17274), (5694, 14395), (5758, 14235), (8637, 9490)]