19915110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2801}}^1$

素因数の和:2893

約数の個数: 48

約数和(自身を含む): 52453440

約数和(自身を除く): 32538330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2801, 3555, 5602, 7110, 8403, 14005, 16806, 25209, 28010, 42015, 50418, 84030, 126045, 221279, 252090, 442558, 663837, 1106395, 1327674, 1991511, 2212790, 3319185, 3983022, 6638370, 9957555, 19915110]

約数ペア:

[(1, 19915110), (2, 9957555), (3, 6638370), (5, 3983022), (6, 3319185), (9, 2212790), (10, 1991511), (15, 1327674), (18, 1106395), (30, 663837), (45, 442558), (79, 252090), (90, 221279), (158, 126045), (237, 84030), (395, 50418), (474, 42015), (711, 28010), (790, 25209), (1185, 16806), (1422, 14005), (2370, 8403), (2801, 7110), (3555, 5602)]