28029123380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3371}}^1\times {\mathrm{21881}}^1$

素因数の和:25280

約数の個数: 48

約数和(自身を含む): 61980327360

約数和(自身を除く): 33951203980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 3371, 6742, 13484, 16855, 21881, 33710, 43762, 64049, 67420, 87524, 109405, 128098, 218810, 256196, 320245, 415739, 437620, 640490, 831478, 1280980, 1662956, 2078695, 4157390, 8314780, 73760851, 147521702, 295043404, 368804255, 737608510, 1401456169, 1475217020, 2802912338, 5605824676, 7007280845, 14014561690, 28029123380]

約数ペア:

[(1, 28029123380), (2, 14014561690), (4, 7007280845), (5, 5605824676), (10, 2802912338), (19, 1475217020), (20, 1401456169), (38, 737608510), (76, 368804255), (95, 295043404), (190, 147521702), (380, 73760851), (3371, 8314780), (6742, 4157390), (13484, 2078695), (16855, 1662956), (21881, 1280980), (33710, 831478), (43762, 640490), (64049, 437620), (67420, 415739), (87524, 320245), (109405, 256196), (128098, 218810)]