20161570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:667

約数の個数: 64

約数和(自身を含む): 44561664

約数和(自身を除く): 24400094

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 26, 46, 55, 65, 110, 115, 130, 143, 230, 253, 286, 299, 506, 598, 613, 715, 1226, 1265, 1430, 1495, 2530, 2990, 3065, 3289, 6130, 6578, 6743, 7969, 13486, 14099, 15938, 16445, 28198, 32890, 33715, 39845, 67430, 70495, 79690, 87659, 140990, 155089, 175318, 183287, 310178, 366574, 438295, 775445, 876590, 916435, 1550890, 1832870, 2016157, 4032314, 10080785, 20161570]

約数ペア:

[(1, 20161570), (2, 10080785), (5, 4032314), (10, 2016157), (11, 1832870), (13, 1550890), (22, 916435), (23, 876590), (26, 775445), (46, 438295), (55, 366574), (65, 310178), (110, 183287), (115, 175318), (130, 155089), (143, 140990), (230, 87659), (253, 79690), (286, 70495), (299, 67430), (506, 39845), (598, 33715), (613, 32890), (715, 28198), (1226, 16445), (1265, 15938), (1430, 14099), (1495, 13486), (2530, 7969), (2990, 6743), (3065, 6578), (3289, 6130)]