830145280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20921}}^1$

素因数の和:20973

約数の個数: 72

約数和(自身を含む): 2052699264

約数和(自身を除く): 1222553984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 20921, 39680, 41842, 83684, 104605, 167368, 209210, 334736, 418420, 648551, 669472, 836840, 1297102, 1338944, 1673680, 2594204, 2677888, 3242755, 3347360, 5188408, 5355776, 6485510, 6694720, 10376816, 12971020, 13389440, 20753632, 25942040, 26778880, 41507264, 51884080, 83014528, 103768160, 166029056, 207536320, 415072640, 830145280]

約数ペア:

[(1, 830145280), (2, 415072640), (4, 207536320), (5, 166029056), (8, 103768160), (10, 83014528), (16, 51884080), (20, 41507264), (31, 26778880), (32, 25942040), (40, 20753632), (62, 13389440), (64, 12971020), (80, 10376816), (124, 6694720), (128, 6485510), (155, 5355776), (160, 5188408), (248, 3347360), (256, 3242755), (310, 2677888), (320, 2594204), (496, 1673680), (620, 1338944), (640, 1297102), (992, 836840), (1240, 669472), (1280, 648551), (1984, 418420), (2480, 334736), (3968, 209210), (4960, 167368), (7936, 104605), (9920, 83684), (19840, 41842), (20921, 39680)]