28307760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 97160448

約数和(自身を除く): 68852688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 43, 48, 52, 60, 65, 78, 80, 86, 104, 120, 129, 130, 156, 172, 195, 208, 211, 215, 240, 258, 260, 312, 344, 390, 422, 430, 516, 520, 559, 624, 633, 645, 688, 780, 844, 860, 1032, 1040, 1055, 1118, 1266, 1290, 1560, 1677, 1688, 1720, 2064, 2110, 2236, 2532, 2580, 2743, 2795, 3120, 3165, 3354, 3376, 3440, 4220, 4472, 5064, 5160, 5486, 5590, 6330, 6708, 8229, 8385, 8440, 8944, 9073, 10128, 10320, 10972, 11180, 12660, 13416, 13715, 16458, 16770, 16880, 18146, 21944, 22360, 25320, 26832, 27219, 27430, 32916, 33540, 36292, 41145, 43888, 44720, 45365, 50640, 54438, 54860, 65832, 67080, 72584, 82290, 90730, 108876, 109720, 117949, 131664, 134160, 136095, 145168, 164580, 181460, 217752, 219440, 235898, 272190, 329160, 353847, 362920, 435504, 471796, 544380, 589745, 658320, 707694, 725840, 943592, 1088760, 1179490, 1415388, 1769235, 1887184, 2177520, 2358980, 2830776, 3538470, 4717960, 5661552, 7076940, 9435920, 14153880, 28307760]

約数ペア:

[(1, 28307760), (2, 14153880), (3, 9435920), (4, 7076940), (5, 5661552), (6, 4717960), (8, 3538470), (10, 2830776), (12, 2358980), (13, 2177520), (15, 1887184), (16, 1769235), (20, 1415388), (24, 1179490), (26, 1088760), (30, 943592), (39, 725840), (40, 707694), (43, 658320), (48, 589745), (52, 544380), (60, 471796), (65, 435504), (78, 362920), (80, 353847), (86, 329160), (104, 272190), (120, 235898), (129, 219440), (130, 217752), (156, 181460), (172, 164580), (195, 145168), (208, 136095), (211, 134160), (215, 131664), (240, 117949), (258, 109720), (260, 108876), (312, 90730), (344, 82290), (390, 72584), (422, 67080), (430, 65832), (516, 54860), (520, 54438), (559, 50640), (624, 45365), (633, 44720), (645, 43888), (688, 41145), (780, 36292), (844, 33540), (860, 32916), (1032, 27430), (1040, 27219), (1055, 26832), (1118, 25320), (1266, 22360), (1290, 21944), (1560, 18146), (1677, 16880), (1688, 16770), (1720, 16458), (2064, 13715), (2110, 13416), (2236, 12660), (2532, 11180), (2580, 10972), (2743, 10320), (2795, 10128), (3120, 9073), (3165, 8944), (3354, 8440), (3376, 8385), (3440, 8229), (4220, 6708), (4472, 6330), (5064, 5590), (5160, 5486)]