39771990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 72

約数和(自身を含む): 106310880

約数和(自身を除く): 66538890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 239, 258, 387, 430, 478, 645, 717, 774, 1195, 1290, 1434, 1849, 1935, 2151, 2390, 3585, 3698, 3870, 4302, 5547, 7170, 9245, 10277, 10755, 11094, 16641, 18490, 20554, 21510, 27735, 30831, 33282, 51385, 55470, 61662, 83205, 92493, 102770, 154155, 166410, 184986, 308310, 441911, 462465, 883822, 924930, 1325733, 2209555, 2651466, 3977199, 4419110, 6628665, 7954398, 13257330, 19885995, 39771990]

約数ペア:

[(1, 39771990), (2, 19885995), (3, 13257330), (5, 7954398), (6, 6628665), (9, 4419110), (10, 3977199), (15, 2651466), (18, 2209555), (30, 1325733), (43, 924930), (45, 883822), (86, 462465), (90, 441911), (129, 308310), (215, 184986), (239, 166410), (258, 154155), (387, 102770), (430, 92493), (478, 83205), (645, 61662), (717, 55470), (774, 51385), (1195, 33282), (1290, 30831), (1434, 27735), (1849, 21510), (1935, 20554), (2151, 18490), (2390, 16641), (3585, 11094), (3698, 10755), (3870, 10277), (4302, 9245), (5547, 7170)]