654326560

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{215239}}^1$

素因数の和:215273

約数の個数: 48

約数和(自身を含む): 1627214400

約数和(自身を除く): 972887840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 215239, 430478, 860956, 1076195, 1721912, 2152390, 3443824, 4089541, 4304780, 6887648, 8179082, 8609560, 16358164, 17219120, 20447705, 32716328, 34438240, 40895410, 65432656, 81790820, 130865312, 163581640, 327163280, 654326560]

約数ペア:

[(1, 654326560), (2, 327163280), (4, 163581640), (5, 130865312), (8, 81790820), (10, 65432656), (16, 40895410), (19, 34438240), (20, 32716328), (32, 20447705), (38, 17219120), (40, 16358164), (76, 8609560), (80, 8179082), (95, 6887648), (152, 4304780), (160, 4089541), (190, 3443824), (304, 2152390), (380, 1721912), (608, 1076195), (760, 860956), (1520, 430478), (3040, 215239)]