2216620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 5419008

約数和(自身を除く): 3202388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 223, 284, 355, 446, 497, 710, 892, 994, 1115, 1420, 1561, 1988, 2230, 2485, 3122, 4460, 4970, 6244, 7805, 9940, 15610, 15833, 31220, 31666, 63332, 79165, 110831, 158330, 221662, 316660, 443324, 554155, 1108310, 2216620]

約数ペア:

[(1, 2216620), (2, 1108310), (4, 554155), (5, 443324), (7, 316660), (10, 221662), (14, 158330), (20, 110831), (28, 79165), (35, 63332), (70, 31666), (71, 31220), (140, 15833), (142, 15610), (223, 9940), (284, 7805), (355, 6244), (446, 4970), (497, 4460), (710, 3122), (892, 2485), (994, 2230), (1115, 1988), (1420, 1561)]