18573940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1723}}^1$

素因数の和:1757

約数の個数: 72

約数和(自身を含む): 49527072

約数和(自身を除く): 30953132

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1723, 2156, 2695, 3446, 5390, 6892, 8615, 10780, 12061, 17230, 18953, 24122, 34460, 37906, 48244, 60305, 75812, 84427, 94765, 120610, 132671, 168854, 189530, 241220, 265342, 337708, 379060, 422135, 530684, 663355, 844270, 928697, 1326710, 1688540, 1857394, 2653420, 3714788, 4643485, 9286970, 18573940]

約数ペア:

[(1, 18573940), (2, 9286970), (4, 4643485), (5, 3714788), (7, 2653420), (10, 1857394), (11, 1688540), (14, 1326710), (20, 928697), (22, 844270), (28, 663355), (35, 530684), (44, 422135), (49, 379060), (55, 337708), (70, 265342), (77, 241220), (98, 189530), (110, 168854), (140, 132671), (154, 120610), (196, 94765), (220, 84427), (245, 75812), (308, 60305), (385, 48244), (490, 37906), (539, 34460), (770, 24122), (980, 18953), (1078, 17230), (1540, 12061), (1723, 10780), (2156, 8615), (2695, 6892), (3446, 5390)]