900138820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{347}}^1\times {\mathrm{2647}}^1$

素因数の和:3017

約数の個数: 72

約数和(自身を含む): 2206080576

約数和(自身を除く): 1305941756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 347, 490, 694, 980, 1388, 1735, 2429, 2647, 3470, 4858, 5294, 6940, 9716, 10588, 12145, 13235, 17003, 18529, 24290, 26470, 34006, 37058, 48580, 52940, 68012, 74116, 85015, 92645, 129703, 170030, 185290, 259406, 340060, 370580, 518812, 648515, 918509, 1297030, 1837018, 2594060, 3674036, 4592545, 6429563, 9185090, 12859126, 18370180, 25718252, 32147815, 45006941, 64295630, 90013882, 128591260, 180027764, 225034705, 450069410, 900138820]

約数ペア:

[(1, 900138820), (2, 450069410), (4, 225034705), (5, 180027764), (7, 128591260), (10, 90013882), (14, 64295630), (20, 45006941), (28, 32147815), (35, 25718252), (49, 18370180), (70, 12859126), (98, 9185090), (140, 6429563), (196, 4592545), (245, 3674036), (347, 2594060), (490, 1837018), (694, 1297030), (980, 918509), (1388, 648515), (1735, 518812), (2429, 370580), (2647, 340060), (3470, 259406), (4858, 185290), (5294, 170030), (6940, 129703), (9716, 92645), (10588, 85015), (12145, 74116), (13235, 68012), (17003, 52940), (18529, 48580), (24290, 37058), (26470, 34006)]