389322800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{31397}}^1$

素因数の和:31446

約数の個数: 60

約数和(自身を含む): 965551296

約数和(自身を除く): 576228496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 31397, 62794, 125588, 156985, 251176, 313970, 502352, 627940, 784925, 973307, 1255880, 1569850, 1946614, 2511760, 3139700, 3893228, 4866535, 6279400, 7786456, 9733070, 12558800, 15572912, 19466140, 24332675, 38932280, 48665350, 77864560, 97330700, 194661400, 389322800]

約数ペア:

[(1, 389322800), (2, 194661400), (4, 97330700), (5, 77864560), (8, 48665350), (10, 38932280), (16, 24332675), (20, 19466140), (25, 15572912), (31, 12558800), (40, 9733070), (50, 7786456), (62, 6279400), (80, 4866535), (100, 3893228), (124, 3139700), (155, 2511760), (200, 1946614), (248, 1569850), (310, 1255880), (400, 973307), (496, 784925), (620, 627940), (775, 502352), (1240, 313970), (1550, 251176), (2480, 156985), (3100, 125588), (6200, 62794), (12400, 31397)]