15516340

素因数分解:

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

素因数の和:317

約数の個数: 72

約数和(自身を含む): 38610432

約数和(自身を除く): 23094092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 223, 245, 284, 355, 446, 490, 497, 710, 892, 980, 994, 1115, 1420, 1561, 1988, 2230, 2485, 3122, 3479, 4460, 4970, 6244, 6958, 7805, 9940, 10927, 13916, 15610, 15833, 17395, 21854, 31220, 31666, 34790, 43708, 54635, 63332, 69580, 79165, 109270, 110831, 158330, 218540, 221662, 316660, 443324, 554155, 775817, 1108310, 1551634, 2216620, 3103268, 3879085, 7758170, 15516340]

約数ペア:

[(1, 15516340), (2, 7758170), (4, 3879085), (5, 3103268), (7, 2216620), (10, 1551634), (14, 1108310), (20, 775817), (28, 554155), (35, 443324), (49, 316660), (70, 221662), (71, 218540), (98, 158330), (140, 110831), (142, 109270), (196, 79165), (223, 69580), (245, 63332), (284, 54635), (355, 43708), (446, 34790), (490, 31666), (497, 31220), (710, 21854), (892, 17395), (980, 15833), (994, 15610), (1115, 13916), (1420, 10927), (1561, 9940), (1988, 7805), (2230, 6958), (2485, 6244), (3122, 4970), (3479, 4460)]