18949460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1136

約数の個数: 48

約数和(自身を含む): 42819840

約数和(自身を除く): 23870380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1061, 1786, 2122, 3572, 4244, 4465, 5305, 8930, 10610, 17860, 20159, 21220, 40318, 49867, 80636, 99734, 100795, 199468, 201590, 249335, 403180, 498670, 947473, 997340, 1894946, 3789892, 4737365, 9474730, 18949460]

約数ペア:

[(1, 18949460), (2, 9474730), (4, 4737365), (5, 3789892), (10, 1894946), (19, 997340), (20, 947473), (38, 498670), (47, 403180), (76, 249335), (94, 201590), (95, 199468), (188, 100795), (190, 99734), (235, 80636), (380, 49867), (470, 40318), (893, 21220), (940, 20159), (1061, 17860), (1786, 10610), (2122, 8930), (3572, 5305), (4244, 4465)]