20807764962

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1\times {\mathrm{1453}}^1$

素因数の和:2003

約数の個数: 64

約数和(自身を含む): 43107168384

約数和(自身を除く): 22299403422

約数列:

[1, 2, 3, 6, 37, 74, 111, 222, 251, 257, 502, 514, 753, 771, 1453, 1506, 1542, 2906, 4359, 8718, 9287, 9509, 18574, 19018, 27861, 28527, 53761, 55722, 57054, 64507, 107522, 129014, 161283, 193521, 322566, 364703, 373421, 387042, 729406, 746842, 1094109, 1120263, 2188218, 2240526, 2386759, 4773518, 7160277, 13494011, 13816577, 14320554, 26988022, 27633154, 40482033, 41449731, 80964066, 82899462, 93728671, 187457342, 281186013, 562372026, 3467960827, 6935921654, 10403882481, 20807764962]

約数ペア:

[(1, 20807764962), (2, 10403882481), (3, 6935921654), (6, 3467960827), (37, 562372026), (74, 281186013), (111, 187457342), (222, 93728671), (251, 82899462), (257, 80964066), (502, 41449731), (514, 40482033), (753, 27633154), (771, 26988022), (1453, 14320554), (1506, 13816577), (1542, 13494011), (2906, 7160277), (4359, 4773518), (8718, 2386759), (9287, 2240526), (9509, 2188218), (18574, 1120263), (19018, 1094109), (27861, 746842), (28527, 729406), (53761, 387042), (55722, 373421), (57054, 364703), (64507, 322566), (107522, 193521), (129014, 161283)]