640421370

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{15919}}^1$

素因数の和:16084

約数の個数: 64

約数和(自身を含む): 1719360000

約数和(自身を除く): 1078938630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 149, 270, 298, 447, 745, 894, 1341, 1490, 2235, 2682, 4023, 4470, 6705, 8046, 13410, 15919, 20115, 31838, 40230, 47757, 79595, 95514, 143271, 159190, 238785, 286542, 429813, 477570, 716355, 859626, 1432710, 2149065, 2371931, 4298130, 4743862, 7115793, 11859655, 14231586, 21347379, 23719310, 35578965, 42694758, 64042137, 71157930, 106736895, 128084274, 213473790, 320210685, 640421370]

約数ペア:

[(1, 640421370), (2, 320210685), (3, 213473790), (5, 128084274), (6, 106736895), (9, 71157930), (10, 64042137), (15, 42694758), (18, 35578965), (27, 23719310), (30, 21347379), (45, 14231586), (54, 11859655), (90, 7115793), (135, 4743862), (149, 4298130), (270, 2371931), (298, 2149065), (447, 1432710), (745, 859626), (894, 716355), (1341, 477570), (1490, 429813), (2235, 286542), (2682, 238785), (4023, 159190), (4470, 143271), (6705, 95514), (8046, 79595), (13410, 47757), (15919, 40230), (20115, 31838)]