19170710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 39481344

約数和(自身を除く): 20310634

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 67, 71, 130, 134, 142, 155, 310, 335, 355, 403, 670, 710, 806, 871, 923, 1742, 1846, 2015, 2077, 2201, 4030, 4154, 4355, 4402, 4615, 4757, 8710, 9230, 9514, 10385, 11005, 20770, 22010, 23785, 27001, 28613, 47570, 54002, 57226, 61841, 123682, 135005, 143065, 147467, 270010, 286130, 294934, 309205, 618410, 737335, 1474670, 1917071, 3834142, 9585355, 19170710]

約数ペア:

[(1, 19170710), (2, 9585355), (5, 3834142), (10, 1917071), (13, 1474670), (26, 737335), (31, 618410), (62, 309205), (65, 294934), (67, 286130), (71, 270010), (130, 147467), (134, 143065), (142, 135005), (155, 123682), (310, 61841), (335, 57226), (355, 54002), (403, 47570), (670, 28613), (710, 27001), (806, 23785), (871, 22010), (923, 20770), (1742, 11005), (1846, 10385), (2015, 9514), (2077, 9230), (2201, 8710), (4030, 4757), (4154, 4615), (4355, 4402)]