28199840

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 71124480

約数和(自身を除く): 42924640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 79, 80, 92, 97, 115, 158, 160, 184, 194, 230, 316, 368, 388, 395, 460, 485, 632, 736, 776, 790, 920, 970, 1264, 1552, 1580, 1817, 1840, 1940, 2231, 2528, 3104, 3160, 3634, 3680, 3880, 4462, 6320, 7268, 7663, 7760, 8924, 9085, 11155, 12640, 14536, 15326, 15520, 17848, 18170, 22310, 29072, 30652, 35696, 36340, 38315, 44620, 58144, 61304, 71392, 72680, 76630, 89240, 122608, 145360, 153260, 176249, 178480, 245216, 290720, 306520, 352498, 356960, 613040, 704996, 881245, 1226080, 1409992, 1762490, 2819984, 3524980, 5639968, 7049960, 14099920, 28199840]

約数ペア:

[(1, 28199840), (2, 14099920), (4, 7049960), (5, 5639968), (8, 3524980), (10, 2819984), (16, 1762490), (20, 1409992), (23, 1226080), (32, 881245), (40, 704996), (46, 613040), (79, 356960), (80, 352498), (92, 306520), (97, 290720), (115, 245216), (158, 178480), (160, 176249), (184, 153260), (194, 145360), (230, 122608), (316, 89240), (368, 76630), (388, 72680), (395, 71392), (460, 61304), (485, 58144), (632, 44620), (736, 38315), (776, 36340), (790, 35696), (920, 30652), (970, 29072), (1264, 22310), (1552, 18170), (1580, 17848), (1817, 15520), (1840, 15326), (1940, 14536), (2231, 12640), (2528, 11155), (3104, 9085), (3160, 8924), (3634, 7760), (3680, 7663), (3880, 7268), (4462, 6320)]