401880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 1283040

約数和(自身を除く): 881160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 197, 204, 255, 340, 394, 408, 510, 591, 680, 788, 985, 1020, 1182, 1576, 1970, 2040, 2364, 2955, 3349, 3940, 4728, 5910, 6698, 7880, 10047, 11820, 13396, 16745, 20094, 23640, 26792, 33490, 40188, 50235, 66980, 80376, 100470, 133960, 200940, 401880]

約数ペア:

[(1, 401880), (2, 200940), (3, 133960), (4, 100470), (5, 80376), (6, 66980), (8, 50235), (10, 40188), (12, 33490), (15, 26792), (17, 23640), (20, 20094), (24, 16745), (30, 13396), (34, 11820), (40, 10047), (51, 7880), (60, 6698), (68, 5910), (85, 4728), (102, 3940), (120, 3349), (136, 2955), (170, 2364), (197, 2040), (204, 1970), (255, 1576), (340, 1182), (394, 1020), (408, 985), (510, 788), (591, 680)]