16857490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 17978990

約数列:

[1, 2, 5, 10, 13, 26, 31, 47, 62, 65, 89, 94, 130, 155, 178, 235, 310, 403, 445, 470, 611, 806, 890, 1157, 1222, 1457, 2015, 2314, 2759, 2914, 3055, 4030, 4183, 5518, 5785, 6110, 7285, 8366, 11570, 13795, 14570, 18941, 20915, 27590, 35867, 37882, 41830, 54379, 71734, 94705, 108758, 129673, 179335, 189410, 259346, 271895, 358670, 543790, 648365, 1296730, 1685749, 3371498, 8428745, 16857490]

約数ペア:

[(1, 16857490), (2, 8428745), (5, 3371498), (10, 1685749), (13, 1296730), (26, 648365), (31, 543790), (47, 358670), (62, 271895), (65, 259346), (89, 189410), (94, 179335), (130, 129673), (155, 108758), (178, 94705), (235, 71734), (310, 54379), (403, 41830), (445, 37882), (470, 35867), (611, 27590), (806, 20915), (890, 18941), (1157, 14570), (1222, 13795), (1457, 11570), (2015, 8366), (2314, 7285), (2759, 6110), (2914, 5785), (3055, 5518), (4030, 4183)]