28801980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{773}}^1$

素因数の和:817

約数の個数: 120

約数和(自身を含む): 94403232

約数和(自身を除く): 65601252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 207, 230, 270, 276, 324, 345, 405, 414, 460, 540, 621, 690, 773, 810, 828, 1035, 1242, 1380, 1546, 1620, 1863, 2070, 2319, 2484, 3092, 3105, 3726, 3865, 4140, 4638, 6210, 6957, 7452, 7730, 9276, 9315, 11595, 12420, 13914, 15460, 17779, 18630, 20871, 23190, 27828, 34785, 35558, 37260, 41742, 46380, 53337, 62613, 69570, 71116, 83484, 88895, 104355, 106674, 125226, 139140, 160011, 177790, 208710, 213348, 250452, 266685, 313065, 320022, 355580, 417420, 480033, 533370, 626130, 640044, 800055, 960066, 1066740, 1252260, 1440099, 1600110, 1920132, 2400165, 2880198, 3200220, 4800330, 5760396, 7200495, 9600660, 14400990, 28801980]

約数ペア:

[(1, 28801980), (2, 14400990), (3, 9600660), (4, 7200495), (5, 5760396), (6, 4800330), (9, 3200220), (10, 2880198), (12, 2400165), (15, 1920132), (18, 1600110), (20, 1440099), (23, 1252260), (27, 1066740), (30, 960066), (36, 800055), (45, 640044), (46, 626130), (54, 533370), (60, 480033), (69, 417420), (81, 355580), (90, 320022), (92, 313065), (108, 266685), (115, 250452), (135, 213348), (138, 208710), (162, 177790), (180, 160011), (207, 139140), (230, 125226), (270, 106674), (276, 104355), (324, 88895), (345, 83484), (405, 71116), (414, 69570), (460, 62613), (540, 53337), (621, 46380), (690, 41742), (773, 37260), (810, 35558), (828, 34785), (1035, 27828), (1242, 23190), (1380, 20871), (1546, 18630), (1620, 17779), (1863, 15460), (2070, 13914), (2319, 12420), (2484, 11595), (3092, 9315), (3105, 9276), (3726, 7730), (3865, 7452), (4140, 6957), (4638, 6210)]