20138528980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{269}}^1\times {\mathrm{1091}}^1$

素因数の和:1489

約数の個数: 96

約数和(自身を含む): 43985410560

約数和(自身を除く): 23846881580

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 269, 292, 365, 470, 538, 730, 940, 1076, 1091, 1345, 1460, 2182, 2690, 3431, 4364, 5380, 5455, 6862, 10910, 12643, 13724, 17155, 19637, 21820, 25286, 34310, 39274, 50572, 51277, 63215, 68620, 78548, 79643, 98185, 102554, 126430, 159286, 196370, 205108, 252860, 256385, 293479, 318572, 392740, 398215, 512770, 586958, 796430, 922939, 1025540, 1173916, 1467395, 1592860, 1845878, 2934790, 3691756, 3743221, 4614695, 5869580, 7486442, 9229390, 13793513, 14972884, 18458780, 18716105, 21423967, 27587026, 37432210, 42847934, 55174052, 68967565, 74864420, 85695868, 107119835, 137935130, 214239670, 275870260, 428479340, 1006926449, 2013852898, 4027705796, 5034632245, 10069264490, 20138528980]

約数ペア:

[(1, 20138528980), (2, 10069264490), (4, 5034632245), (5, 4027705796), (10, 2013852898), (20, 1006926449), (47, 428479340), (73, 275870260), (94, 214239670), (146, 137935130), (188, 107119835), (235, 85695868), (269, 74864420), (292, 68967565), (365, 55174052), (470, 42847934), (538, 37432210), (730, 27587026), (940, 21423967), (1076, 18716105), (1091, 18458780), (1345, 14972884), (1460, 13793513), (2182, 9229390), (2690, 7486442), (3431, 5869580), (4364, 4614695), (5380, 3743221), (5455, 3691756), (6862, 2934790), (10910, 1845878), (12643, 1592860), (13724, 1467395), (17155, 1173916), (19637, 1025540), (21820, 922939), (25286, 796430), (34310, 586958), (39274, 512770), (50572, 398215), (51277, 392740), (63215, 318572), (68620, 293479), (78548, 256385), (79643, 252860), (98185, 205108), (102554, 196370), (126430, 159286)]