1280490712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{821}}^1$

素因数の和:1208

約数の個数: 64

約数和(自身を含む): 2619878400

約数和(自身を除く): 1339387688

約数列:

[1, 2, 4, 8, 19, 31, 38, 62, 76, 124, 152, 248, 331, 589, 662, 821, 1178, 1324, 1642, 2356, 2648, 3284, 4712, 6289, 6568, 10261, 12578, 15599, 20522, 25156, 25451, 31198, 41044, 50312, 50902, 62396, 82088, 101804, 124792, 194959, 203608, 271751, 389918, 483569, 543502, 779836, 967138, 1087004, 1559672, 1934276, 2174008, 3868552, 5163269, 8424281, 10326538, 16848562, 20653076, 33697124, 41306152, 67394248, 160061339, 320122678, 640245356, 1280490712]

約数ペア:

[(1, 1280490712), (2, 640245356), (4, 320122678), (8, 160061339), (19, 67394248), (31, 41306152), (38, 33697124), (62, 20653076), (76, 16848562), (124, 10326538), (152, 8424281), (248, 5163269), (331, 3868552), (589, 2174008), (662, 1934276), (821, 1559672), (1178, 1087004), (1324, 967138), (1642, 779836), (2356, 543502), (2648, 483569), (3284, 389918), (4712, 271751), (6289, 203608), (6568, 194959), (10261, 124792), (12578, 101804), (15599, 82088), (20522, 62396), (25156, 50902), (25451, 50312), (31198, 41044)]