89782820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{809}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 195955200

約数和(自身を除く): 106172380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 179, 310, 358, 620, 716, 809, 895, 1618, 1790, 3236, 3580, 4045, 5549, 8090, 11098, 16180, 22196, 25079, 27745, 50158, 55490, 100316, 110980, 125395, 144811, 250790, 289622, 501580, 579244, 724055, 1448110, 2896220, 4489141, 8978282, 17956564, 22445705, 44891410, 89782820]

約数ペア:

[(1, 89782820), (2, 44891410), (4, 22445705), (5, 17956564), (10, 8978282), (20, 4489141), (31, 2896220), (62, 1448110), (124, 724055), (155, 579244), (179, 501580), (310, 289622), (358, 250790), (620, 144811), (716, 125395), (809, 110980), (895, 100316), (1618, 55490), (1790, 50158), (3236, 27745), (3580, 25079), (4045, 22196), (5549, 16180), (8090, 11098)]