400787820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{9239}}^1$

素因数の和:9495

約数の個数: 72

約数和(自身を含む): 1220899680

約数和(自身を除く): 820111860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 723, 964, 1205, 1446, 2169, 2410, 2892, 3615, 4338, 4820, 7230, 8676, 9239, 10845, 14460, 18478, 21690, 27717, 36956, 43380, 46195, 55434, 83151, 92390, 110868, 138585, 166302, 184780, 277170, 332604, 415755, 554340, 831510, 1663020, 2226599, 4453198, 6679797, 8906396, 11132995, 13359594, 20039391, 22265990, 26719188, 33398985, 40078782, 44531980, 66797970, 80157564, 100196955, 133595940, 200393910, 400787820]

約数ペア:

[(1, 400787820), (2, 200393910), (3, 133595940), (4, 100196955), (5, 80157564), (6, 66797970), (9, 44531980), (10, 40078782), (12, 33398985), (15, 26719188), (18, 22265990), (20, 20039391), (30, 13359594), (36, 11132995), (45, 8906396), (60, 6679797), (90, 4453198), (180, 2226599), (241, 1663020), (482, 831510), (723, 554340), (964, 415755), (1205, 332604), (1446, 277170), (2169, 184780), (2410, 166302), (2892, 138585), (3615, 110868), (4338, 92390), (4820, 83151), (7230, 55434), (8676, 46195), (9239, 43380), (10845, 36956), (14460, 27717), (18478, 21690)]