2782220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 7239456

約数和(自身を除く): 4457236

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 167, 170, 196, 238, 245, 334, 340, 476, 490, 595, 668, 833, 835, 980, 1169, 1190, 1666, 1670, 2338, 2380, 2839, 3332, 3340, 4165, 4676, 5678, 5845, 8183, 8330, 11356, 11690, 14195, 16366, 16660, 19873, 23380, 28390, 32732, 39746, 40915, 56780, 79492, 81830, 99365, 139111, 163660, 198730, 278222, 397460, 556444, 695555, 1391110, 2782220]

約数ペア:

[(1, 2782220), (2, 1391110), (4, 695555), (5, 556444), (7, 397460), (10, 278222), (14, 198730), (17, 163660), (20, 139111), (28, 99365), (34, 81830), (35, 79492), (49, 56780), (68, 40915), (70, 39746), (85, 32732), (98, 28390), (119, 23380), (140, 19873), (167, 16660), (170, 16366), (196, 14195), (238, 11690), (245, 11356), (334, 8330), (340, 8183), (476, 5845), (490, 5678), (595, 4676), (668, 4165), (833, 3340), (835, 3332), (980, 2839), (1169, 2380), (1190, 2338), (1666, 1670)]