2574460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 6549984

約数和(自身を除く): 3975524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 71, 74, 98, 140, 142, 148, 185, 196, 245, 259, 284, 355, 370, 490, 497, 518, 710, 740, 980, 994, 1036, 1295, 1420, 1813, 1988, 2485, 2590, 2627, 3479, 3626, 4970, 5180, 5254, 6958, 7252, 9065, 9940, 10508, 13135, 13916, 17395, 18130, 18389, 26270, 34790, 36260, 36778, 52540, 69580, 73556, 91945, 128723, 183890, 257446, 367780, 514892, 643615, 1287230, 2574460]

約数ペア:

[(1, 2574460), (2, 1287230), (4, 643615), (5, 514892), (7, 367780), (10, 257446), (14, 183890), (20, 128723), (28, 91945), (35, 73556), (37, 69580), (49, 52540), (70, 36778), (71, 36260), (74, 34790), (98, 26270), (140, 18389), (142, 18130), (148, 17395), (185, 13916), (196, 13135), (245, 10508), (259, 9940), (284, 9065), (355, 7252), (370, 6958), (490, 5254), (497, 5180), (518, 4970), (710, 3626), (740, 3479), (980, 2627), (994, 2590), (1036, 2485), (1295, 1988), (1420, 1813)]