15665860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{751}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 37900800

約数和(自身を除く): 22234940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 751, 1043, 1490, 1502, 2086, 2980, 3004, 3755, 4172, 5215, 5257, 7510, 10430, 10514, 15020, 20860, 21028, 26285, 52570, 105140, 111899, 223798, 447596, 559495, 783293, 1118990, 1566586, 2237980, 3133172, 3916465, 7832930, 15665860]

約数ペア:

[(1, 15665860), (2, 7832930), (4, 3916465), (5, 3133172), (7, 2237980), (10, 1566586), (14, 1118990), (20, 783293), (28, 559495), (35, 447596), (70, 223798), (140, 111899), (149, 105140), (298, 52570), (596, 26285), (745, 21028), (751, 20860), (1043, 15020), (1490, 10514), (1502, 10430), (2086, 7510), (2980, 5257), (3004, 5215), (3755, 4172)]