220719680

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8731}}^1$

素因数の和:8827

約数の個数: 56

約数和(自身を含む): 532302720

約数和(自身を除く): 311583040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 8731, 12640, 17462, 25280, 34924, 43655, 69848, 87310, 139696, 174620, 279392, 349240, 558784, 689749, 698480, 1379498, 1396960, 2758996, 2793920, 3448745, 5517992, 6897490, 11035984, 13794980, 22071968, 27589960, 44143936, 55179920, 110359840, 220719680]

約数ペア:

[(1, 220719680), (2, 110359840), (4, 55179920), (5, 44143936), (8, 27589960), (10, 22071968), (16, 13794980), (20, 11035984), (32, 6897490), (40, 5517992), (64, 3448745), (79, 2793920), (80, 2758996), (158, 1396960), (160, 1379498), (316, 698480), (320, 689749), (395, 558784), (632, 349240), (790, 279392), (1264, 174620), (1580, 139696), (2528, 87310), (3160, 69848), (5056, 43655), (6320, 34924), (8731, 25280), (12640, 17462)]