172015280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:682

約数の個数: 80

約数和(自身を含む): 416640000

約数和(自身を除く): 244624720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 248, 278, 310, 496, 499, 556, 620, 695, 998, 1112, 1240, 1390, 1996, 2224, 2480, 2495, 2780, 3992, 4309, 4990, 5560, 7984, 8618, 9980, 11120, 15469, 17236, 19960, 21545, 30938, 34472, 39920, 43090, 61876, 68944, 69361, 77345, 86180, 123752, 138722, 154690, 172360, 247504, 277444, 309380, 344720, 346805, 554888, 618760, 693610, 1109776, 1237520, 1387220, 2150191, 2774440, 4300382, 5548880, 8600764, 10750955, 17201528, 21501910, 34403056, 43003820, 86007640, 172015280]

約数ペア:

[(1, 172015280), (2, 86007640), (4, 43003820), (5, 34403056), (8, 21501910), (10, 17201528), (16, 10750955), (20, 8600764), (31, 5548880), (40, 4300382), (62, 2774440), (80, 2150191), (124, 1387220), (139, 1237520), (155, 1109776), (248, 693610), (278, 618760), (310, 554888), (496, 346805), (499, 344720), (556, 309380), (620, 277444), (695, 247504), (998, 172360), (1112, 154690), (1240, 138722), (1390, 123752), (1996, 86180), (2224, 77345), (2480, 69361), (2495, 68944), (2780, 61876), (3992, 43090), (4309, 39920), (4990, 34472), (5560, 30938), (7984, 21545), (8618, 19960), (9980, 17236), (11120, 15469)]