9991140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1871}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 18313500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 1871, 2670, 3742, 5340, 5613, 7484, 9355, 11226, 18710, 22452, 28065, 37420, 56130, 112260, 166519, 333038, 499557, 666076, 832595, 999114, 1665190, 1998228, 2497785, 3330380, 4995570, 9991140]

約数ペア:

[(1, 9991140), (2, 4995570), (3, 3330380), (4, 2497785), (5, 1998228), (6, 1665190), (10, 999114), (12, 832595), (15, 666076), (20, 499557), (30, 333038), (60, 166519), (89, 112260), (178, 56130), (267, 37420), (356, 28065), (445, 22452), (534, 18710), (890, 11226), (1068, 9355), (1335, 7484), (1780, 5613), (1871, 5340), (2670, 3742)]