320142890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 622080000

約数和(自身を除く): 301937110

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 149, 155, 239, 290, 298, 310, 478, 745, 899, 1195, 1490, 1798, 2390, 4321, 4495, 4619, 6931, 7409, 8642, 8990, 9238, 13862, 14818, 21605, 23095, 34655, 35611, 37045, 43210, 46190, 69310, 71222, 74090, 133951, 178055, 214861, 267902, 356110, 429722, 669755, 1032719, 1074305, 1103941, 1339510, 2065438, 2148610, 2207882, 5163595, 5519705, 10327190, 11039410, 32014289, 64028578, 160071445, 320142890]

約数ペア:

[(1, 320142890), (2, 160071445), (5, 64028578), (10, 32014289), (29, 11039410), (31, 10327190), (58, 5519705), (62, 5163595), (145, 2207882), (149, 2148610), (155, 2065438), (239, 1339510), (290, 1103941), (298, 1074305), (310, 1032719), (478, 669755), (745, 429722), (899, 356110), (1195, 267902), (1490, 214861), (1798, 178055), (2390, 133951), (4321, 74090), (4495, 71222), (4619, 69310), (6931, 46190), (7409, 43210), (8642, 37045), (8990, 35611), (9238, 34655), (13862, 23095), (14818, 21605)]