15138620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1523}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 36868608

約数和(自身を除く): 21729988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1523, 1988, 2485, 3046, 4970, 6092, 7615, 9940, 10661, 15230, 21322, 30460, 42644, 53305, 106610, 108133, 213220, 216266, 432532, 540665, 756931, 1081330, 1513862, 2162660, 3027724, 3784655, 7569310, 15138620]

約数ペア:

[(1, 15138620), (2, 7569310), (4, 3784655), (5, 3027724), (7, 2162660), (10, 1513862), (14, 1081330), (20, 756931), (28, 540665), (35, 432532), (70, 216266), (71, 213220), (140, 108133), (142, 106610), (284, 53305), (355, 42644), (497, 30460), (710, 21322), (994, 15230), (1420, 10661), (1523, 9940), (1988, 7615), (2485, 6092), (3046, 4970)]