920816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 2031120

約数和(自身を除く): 1110304

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 233, 247, 304, 466, 494, 932, 988, 1864, 1976, 3029, 3728, 3952, 4427, 6058, 8854, 12116, 17708, 24232, 35416, 48464, 57551, 70832, 115102, 230204, 460408, 920816]

約数ペア:

[(1, 920816), (2, 460408), (4, 230204), (8, 115102), (13, 70832), (16, 57551), (19, 48464), (26, 35416), (38, 24232), (52, 17708), (76, 12116), (104, 8854), (152, 6058), (208, 4427), (233, 3952), (247, 3728), (304, 3029), (466, 1976), (494, 1864), (932, 988)]