400545

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:83

約数の個数: 40

約数和(自身を含む): 766656

約数和(自身を除く): 366111

約数列:

[1, 3, 5, 9, 15, 23, 27, 43, 45, 69, 81, 115, 129, 135, 207, 215, 345, 387, 405, 621, 645, 989, 1035, 1161, 1863, 1935, 2967, 3105, 3483, 4945, 5805, 8901, 9315, 14835, 17415, 26703, 44505, 80109, 133515, 400545]

約数ペア:

[(1, 400545), (3, 133515), (5, 80109), (9, 44505), (15, 26703), (23, 17415), (27, 14835), (43, 9315), (45, 8901), (69, 5805), (81, 4945), (115, 3483), (129, 3105), (135, 2967), (207, 1935), (215, 1863), (345, 1161), (387, 1035), (405, 989), (621, 645)]