28187520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:352

約数の個数: 128

約数和(自身を含む): 91873440

約数和(自身を除く): 63685920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 159, 160, 192, 212, 240, 265, 277, 318, 320, 384, 424, 480, 530, 554, 636, 640, 795, 831, 848, 960, 1060, 1108, 1272, 1385, 1590, 1662, 1696, 1920, 2120, 2216, 2544, 2770, 3180, 3324, 3392, 4155, 4240, 4432, 5088, 5540, 6360, 6648, 6784, 8310, 8480, 8864, 10176, 11080, 12720, 13296, 14681, 16620, 16960, 17728, 20352, 22160, 25440, 26592, 29362, 33240, 33920, 35456, 44043, 44320, 50880, 53184, 58724, 66480, 73405, 88086, 88640, 101760, 106368, 117448, 132960, 146810, 176172, 177280, 220215, 234896, 265920, 293620, 352344, 440430, 469792, 531840, 587240, 704688, 880860, 939584, 1174480, 1409376, 1761720, 1879168, 2348960, 2818752, 3523440, 4697920, 5637504, 7046880, 9395840, 14093760, 28187520]

約数ペア:

[(1, 28187520), (2, 14093760), (3, 9395840), (4, 7046880), (5, 5637504), (6, 4697920), (8, 3523440), (10, 2818752), (12, 2348960), (15, 1879168), (16, 1761720), (20, 1409376), (24, 1174480), (30, 939584), (32, 880860), (40, 704688), (48, 587240), (53, 531840), (60, 469792), (64, 440430), (80, 352344), (96, 293620), (106, 265920), (120, 234896), (128, 220215), (159, 177280), (160, 176172), (192, 146810), (212, 132960), (240, 117448), (265, 106368), (277, 101760), (318, 88640), (320, 88086), (384, 73405), (424, 66480), (480, 58724), (530, 53184), (554, 50880), (636, 44320), (640, 44043), (795, 35456), (831, 33920), (848, 33240), (960, 29362), (1060, 26592), (1108, 25440), (1272, 22160), (1385, 20352), (1590, 17728), (1662, 16960), (1696, 16620), (1920, 14681), (2120, 13296), (2216, 12720), (2544, 11080), (2770, 10176), (3180, 8864), (3324, 8480), (3392, 8310), (4155, 6784), (4240, 6648), (4432, 6360), (5088, 5540)]