28409920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1153}}^1$

素因数の和:1188

約数の個数: 112

約数和(自身を含む): 84417408

約数和(自身を除く): 56007488

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 880, 1120, 1153, 1232, 1540, 1760, 2240, 2306, 2464, 3080, 3520, 4612, 4928, 5765, 6160, 8071, 9224, 11530, 12320, 12683, 16142, 18448, 23060, 24640, 25366, 32284, 36896, 40355, 46120, 50732, 63415, 64568, 73792, 80710, 88781, 92240, 101464, 126830, 129136, 161420, 177562, 184480, 202928, 253660, 258272, 322840, 355124, 368960, 405856, 443905, 507320, 516544, 645680, 710248, 811712, 887810, 1014640, 1291360, 1420496, 1775620, 2029280, 2582720, 2840992, 3551240, 4058560, 5681984, 7102480, 14204960, 28409920]

約数ペア:

[(1, 28409920), (2, 14204960), (4, 7102480), (5, 5681984), (7, 4058560), (8, 3551240), (10, 2840992), (11, 2582720), (14, 2029280), (16, 1775620), (20, 1420496), (22, 1291360), (28, 1014640), (32, 887810), (35, 811712), (40, 710248), (44, 645680), (55, 516544), (56, 507320), (64, 443905), (70, 405856), (77, 368960), (80, 355124), (88, 322840), (110, 258272), (112, 253660), (140, 202928), (154, 184480), (160, 177562), (176, 161420), (220, 129136), (224, 126830), (280, 101464), (308, 92240), (320, 88781), (352, 80710), (385, 73792), (440, 64568), (448, 63415), (560, 50732), (616, 46120), (704, 40355), (770, 36896), (880, 32284), (1120, 25366), (1153, 24640), (1232, 23060), (1540, 18448), (1760, 16142), (2240, 12683), (2306, 12320), (2464, 11530), (3080, 9224), (3520, 8071), (4612, 6160), (4928, 5765)]