218279680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5501}}^1$

素因数の和:5553

約数の個数: 72

約数和(自身を含む): 539812224

約数和(自身を除く): 321532544

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, 5501, 7936, 9920, 11002, 19840, 22004, 27505, 39680, 44008, 55010, 88016, 110020, 170531, 176032, 220040, 341062, 352064, 440080, 682124, 704128, 852655, 880160, 1364248, 1408256, 1705310, 1760320, 2728496, 3410620, 3520640, 5456992, 6821240, 7041280, 10913984, 13642480, 21827968, 27284960, 43655936, 54569920, 109139840, 218279680]

約数ペア:

[(1, 218279680), (2, 109139840), (4, 54569920), (5, 43655936), (8, 27284960), (10, 21827968), (16, 13642480), (20, 10913984), (31, 7041280), (32, 6821240), (40, 5456992), (62, 3520640), (64, 3410620), (80, 2728496), (124, 1760320), (128, 1705310), (155, 1408256), (160, 1364248), (248, 880160), (256, 852655), (310, 704128), (320, 682124), (496, 440080), (620, 352064), (640, 341062), (992, 220040), (1240, 176032), (1280, 170531), (1984, 110020), (2480, 88016), (3968, 55010), (4960, 44008), (5501, 39680), (7936, 27505), (9920, 22004), (11002, 19840)]