28525580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 62469120

約数和(自身を除く): 33943540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 331, 556, 620, 662, 695, 1324, 1390, 1655, 2780, 3310, 4309, 6620, 8618, 10261, 17236, 20522, 21545, 41044, 43090, 46009, 51305, 86180, 92018, 102610, 184036, 205220, 230045, 460090, 920180, 1426279, 2852558, 5705116, 7131395, 14262790, 28525580]

約数ペア:

[(1, 28525580), (2, 14262790), (4, 7131395), (5, 5705116), (10, 2852558), (20, 1426279), (31, 920180), (62, 460090), (124, 230045), (139, 205220), (155, 184036), (278, 102610), (310, 92018), (331, 86180), (556, 51305), (620, 46009), (662, 43090), (695, 41044), (1324, 21545), (1390, 20522), (1655, 17236), (2780, 10261), (3310, 8618), (4309, 6620)]