209550080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5281}}^1$

素因数の和:5333

約数の個数: 72

約数和(自身を含む): 518227584

約数和(自身を除く): 308677504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 5281, 7936, 9920, 10562, 19840, 21124, 26405, 39680, 42248, 52810, 84496, 105620, 163711, 168992, 211240, 327422, 337984, 422480, 654844, 675968, 818555, 844960, 1309688, 1351936, 1637110, 1689920, 2619376, 3274220, 3379840, 5238752, 6548440, 6759680, 10477504, 13096880, 20955008, 26193760, 41910016, 52387520, 104775040, 209550080]

約数ペア:

[(1, 209550080), (2, 104775040), (4, 52387520), (5, 41910016), (8, 26193760), (10, 20955008), (16, 13096880), (20, 10477504), (31, 6759680), (32, 6548440), (40, 5238752), (62, 3379840), (64, 3274220), (80, 2619376), (124, 1689920), (128, 1637110), (155, 1351936), (160, 1309688), (248, 844960), (256, 818555), (310, 675968), (320, 654844), (496, 422480), (620, 337984), (640, 327422), (992, 211240), (1240, 168992), (1280, 163711), (1984, 105620), (2480, 84496), (3968, 52810), (4960, 42248), (5281, 39680), (7936, 26405), (9920, 21124), (10562, 19840)]