286264940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^2\times {\mathrm{139}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 659465520

約数和(自身を除く): 373200580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 139, 178, 260, 278, 356, 445, 556, 695, 890, 1157, 1390, 1780, 1807, 2314, 2780, 3614, 4628, 5785, 7228, 7921, 9035, 11570, 12371, 15842, 18070, 23140, 24742, 31684, 36140, 39605, 49484, 61855, 79210, 102973, 123710, 158420, 160823, 205946, 247420, 321646, 411892, 514865, 643292, 804115, 1029730, 1101019, 1608230, 2059460, 2202038, 3216460, 4404076, 5505095, 11010190, 14313247, 22020380, 28626494, 57252988, 71566235, 143132470, 286264940]

約数ペア:

[(1, 286264940), (2, 143132470), (4, 71566235), (5, 57252988), (10, 28626494), (13, 22020380), (20, 14313247), (26, 11010190), (52, 5505095), (65, 4404076), (89, 3216460), (130, 2202038), (139, 2059460), (178, 1608230), (260, 1101019), (278, 1029730), (356, 804115), (445, 643292), (556, 514865), (695, 411892), (890, 321646), (1157, 247420), (1390, 205946), (1780, 160823), (1807, 158420), (2314, 123710), (2780, 102973), (3614, 79210), (4628, 61855), (5785, 49484), (7228, 39605), (7921, 36140), (9035, 31684), (11570, 24742), (12371, 23140), (15842, 18070)]