1639299830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1\times {\mathrm{661}}^1$

素因数の和:1245

約数の個数: 64

約数和(自身を含む): 3431808000

約数和(自身を除く): 1792508170

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 499, 661, 710, 994, 998, 1322, 2485, 2495, 3305, 3493, 4627, 4970, 4990, 6610, 6986, 9254, 17465, 23135, 34930, 35429, 46270, 46931, 70858, 93862, 177145, 234655, 248003, 328517, 329839, 354290, 469310, 496006, 657034, 659678, 1240015, 1642585, 1649195, 2308873, 2480030, 3285170, 3298390, 4617746, 11544365, 23088730, 23418569, 46837138, 117092845, 163929983, 234185690, 327859966, 819649915, 1639299830]

約数ペア:

[(1, 1639299830), (2, 819649915), (5, 327859966), (7, 234185690), (10, 163929983), (14, 117092845), (35, 46837138), (70, 23418569), (71, 23088730), (142, 11544365), (355, 4617746), (497, 3298390), (499, 3285170), (661, 2480030), (710, 2308873), (994, 1649195), (998, 1642585), (1322, 1240015), (2485, 659678), (2495, 657034), (3305, 496006), (3493, 469310), (4627, 354290), (4970, 329839), (4990, 328517), (6610, 248003), (6986, 234655), (9254, 177145), (17465, 93862), (23135, 70858), (34930, 46931), (35429, 46270)]