20218997060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1\times {\mathrm{1481}}^1$

素因数の和:2517

約数の個数: 96

約数和(自身を含む): 45980887680

約数和(自身を除く): 25761890620

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 971, 1406, 1481, 1942, 2812, 2962, 3515, 3884, 4855, 5924, 7030, 7405, 9710, 14060, 14810, 18449, 19420, 28139, 29620, 35927, 36898, 54797, 56278, 71854, 73796, 92245, 109594, 112556, 140695, 143708, 179635, 184490, 219188, 273985, 281390, 359270, 368980, 547970, 562780, 682613, 718540, 1041143, 1095940, 1365226, 1438051, 2082286, 2730452, 2876102, 3413065, 4164572, 5205715, 5752204, 6826130, 7190255, 10411430, 13652260, 14380510, 20822860, 27322969, 28761020, 53207887, 54645938, 106415774, 109291876, 136614845, 212831548, 266039435, 273229690, 532078870, 546459380, 1010949853, 1064157740, 2021899706, 4043799412, 5054749265, 10109498530, 20218997060]

約数ペア:

[(1, 20218997060), (2, 10109498530), (4, 5054749265), (5, 4043799412), (10, 2021899706), (19, 1064157740), (20, 1010949853), (37, 546459380), (38, 532078870), (74, 273229690), (76, 266039435), (95, 212831548), (148, 136614845), (185, 109291876), (190, 106415774), (370, 54645938), (380, 53207887), (703, 28761020), (740, 27322969), (971, 20822860), (1406, 14380510), (1481, 13652260), (1942, 10411430), (2812, 7190255), (2962, 6826130), (3515, 5752204), (3884, 5205715), (4855, 4164572), (5924, 3413065), (7030, 2876102), (7405, 2730452), (9710, 2082286), (14060, 1438051), (14810, 1365226), (18449, 1095940), (19420, 1041143), (28139, 718540), (29620, 682613), (35927, 562780), (36898, 547970), (54797, 368980), (56278, 359270), (71854, 281390), (73796, 273985), (92245, 219188), (109594, 184490), (112556, 179635), (140695, 143708)]