321305920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77237}}^1$

素因数の和:77267

約数の個数: 56

約数和(自身を含む): 823974984

約数和(自身を除く): 502669064

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 77237, 154474, 308948, 386185, 617896, 772370, 1004081, 1235792, 1544740, 2008162, 2471584, 3089480, 4016324, 4943168, 5020405, 6178960, 8032648, 10040810, 12357920, 16065296, 20081620, 24715840, 32130592, 40163240, 64261184, 80326480, 160652960, 321305920]

約数ペア:

[(1, 321305920), (2, 160652960), (4, 80326480), (5, 64261184), (8, 40163240), (10, 32130592), (13, 24715840), (16, 20081620), (20, 16065296), (26, 12357920), (32, 10040810), (40, 8032648), (52, 6178960), (64, 5020405), (65, 4943168), (80, 4016324), (104, 3089480), (130, 2471584), (160, 2008162), (208, 1544740), (260, 1235792), (320, 1004081), (416, 772370), (520, 617896), (832, 386185), (1040, 308948), (2080, 154474), (4160, 77237)]