8412280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 20412000

約数和(自身を除く): 11999720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 139, 170, 178, 278, 340, 356, 445, 556, 680, 695, 712, 890, 1112, 1390, 1513, 1780, 2363, 2780, 3026, 3560, 4726, 5560, 6052, 7565, 9452, 11815, 12104, 12371, 15130, 18904, 23630, 24742, 30260, 47260, 49484, 60520, 61855, 94520, 98968, 123710, 210307, 247420, 420614, 494840, 841228, 1051535, 1682456, 2103070, 4206140, 8412280]

約数ペア:

[(1, 8412280), (2, 4206140), (4, 2103070), (5, 1682456), (8, 1051535), (10, 841228), (17, 494840), (20, 420614), (34, 247420), (40, 210307), (68, 123710), (85, 98968), (89, 94520), (136, 61855), (139, 60520), (170, 49484), (178, 47260), (278, 30260), (340, 24742), (356, 23630), (445, 18904), (556, 15130), (680, 12371), (695, 12104), (712, 11815), (890, 9452), (1112, 7565), (1390, 6052), (1513, 5560), (1780, 4726), (2363, 3560), (2780, 3026)]