20762270680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{649633}}^1$

素因数の和:649708

約数の個数: 64

約数和(自身を含む): 50515539840

約数和(自身を除く): 29753269160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 940, 1598, 1880, 3196, 3995, 6392, 7990, 15980, 31960, 649633, 1299266, 2598532, 3248165, 5197064, 6496330, 11043761, 12992660, 22087522, 25985320, 30532751, 44175044, 55218805, 61065502, 88350088, 110437610, 122131004, 152663755, 220875220, 244262008, 305327510, 441750440, 519056767, 610655020, 1038113534, 1221310040, 2076227068, 2595283835, 4152454136, 5190567670, 10381135340, 20762270680]

約数ペア:

[(1, 20762270680), (2, 10381135340), (4, 5190567670), (5, 4152454136), (8, 2595283835), (10, 2076227068), (17, 1221310040), (20, 1038113534), (34, 610655020), (40, 519056767), (47, 441750440), (68, 305327510), (85, 244262008), (94, 220875220), (136, 152663755), (170, 122131004), (188, 110437610), (235, 88350088), (340, 61065502), (376, 55218805), (470, 44175044), (680, 30532751), (799, 25985320), (940, 22087522), (1598, 12992660), (1880, 11043761), (3196, 6496330), (3995, 5197064), (6392, 3248165), (7990, 2598532), (15980, 1299266), (31960, 649633)]