409454980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{12491}}^1$

素因数の和:12660

約数の個数: 48

約数和(自身を含む): 944395200

約数和(自身を除く): 534940220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 2980, 3278, 6556, 8195, 12491, 16390, 24982, 32780, 49964, 62455, 124910, 137401, 249820, 274802, 549604, 687005, 1374010, 1861159, 2748020, 3722318, 7444636, 9305795, 18611590, 20472749, 37223180, 40945498, 81890996, 102363745, 204727490, 409454980]

約数ペア:

[(1, 409454980), (2, 204727490), (4, 102363745), (5, 81890996), (10, 40945498), (11, 37223180), (20, 20472749), (22, 18611590), (44, 9305795), (55, 7444636), (110, 3722318), (149, 2748020), (220, 1861159), (298, 1374010), (596, 687005), (745, 549604), (1490, 274802), (1639, 249820), (2980, 137401), (3278, 124910), (6556, 62455), (8195, 49964), (12491, 32780), (16390, 24982)]