31881920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 112

約数和(自身を含む): 89050368

約数和(自身を除く): 57168448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 320, 331, 344, 430, 448, 560, 602, 662, 688, 860, 1120, 1204, 1324, 1376, 1505, 1655, 1720, 2240, 2317, 2408, 2648, 2752, 3010, 3310, 3440, 4634, 4816, 5296, 6020, 6620, 6880, 9268, 9632, 10592, 11585, 12040, 13240, 13760, 14233, 18536, 19264, 21184, 23170, 24080, 26480, 28466, 37072, 46340, 48160, 52960, 56932, 71165, 74144, 92680, 96320, 99631, 105920, 113864, 142330, 148288, 185360, 199262, 227728, 284660, 370720, 398524, 455456, 498155, 569320, 741440, 797048, 910912, 996310, 1138640, 1594096, 1992620, 2277280, 3188192, 3985240, 4554560, 6376384, 7970480, 15940960, 31881920]

約数ペア:

[(1, 31881920), (2, 15940960), (4, 7970480), (5, 6376384), (7, 4554560), (8, 3985240), (10, 3188192), (14, 2277280), (16, 1992620), (20, 1594096), (28, 1138640), (32, 996310), (35, 910912), (40, 797048), (43, 741440), (56, 569320), (64, 498155), (70, 455456), (80, 398524), (86, 370720), (112, 284660), (140, 227728), (160, 199262), (172, 185360), (215, 148288), (224, 142330), (280, 113864), (301, 105920), (320, 99631), (331, 96320), (344, 92680), (430, 74144), (448, 71165), (560, 56932), (602, 52960), (662, 48160), (688, 46340), (860, 37072), (1120, 28466), (1204, 26480), (1324, 24080), (1376, 23170), (1505, 21184), (1655, 19264), (1720, 18536), (2240, 14233), (2317, 13760), (2408, 13240), (2648, 12040), (2752, 11585), (3010, 10592), (3310, 9632), (3440, 9268), (4634, 6880), (4816, 6620), (5296, 6020)]