20180643832

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1\times {\mathrm{2689}}^1$

素因数の和:3248

約数の個数: 64

約数和(自身を含む): 40469436000

約数和(自身を除く): 20288792168

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 397, 556, 794, 1112, 1588, 2363, 2689, 3176, 4726, 5378, 6749, 9452, 10756, 13498, 18904, 21512, 26996, 45713, 53992, 55183, 91426, 110366, 182852, 220732, 365704, 373771, 441464, 747542, 938111, 1067533, 1495084, 1876222, 2135066, 2990168, 3752444, 4270132, 6354107, 7504888, 8540264, 12708214, 18148061, 25416428, 36296122, 50832856, 72592244, 145184488, 148387087, 296774174, 593548348, 1187096696, 2522580479, 5045160958, 10090321916, 20180643832]

約数ペア:

[(1, 20180643832), (2, 10090321916), (4, 5045160958), (8, 2522580479), (17, 1187096696), (34, 593548348), (68, 296774174), (136, 148387087), (139, 145184488), (278, 72592244), (397, 50832856), (556, 36296122), (794, 25416428), (1112, 18148061), (1588, 12708214), (2363, 8540264), (2689, 7504888), (3176, 6354107), (4726, 4270132), (5378, 3752444), (6749, 2990168), (9452, 2135066), (10756, 1876222), (13498, 1495084), (18904, 1067533), (21512, 938111), (26996, 747542), (45713, 441464), (53992, 373771), (55183, 365704), (91426, 220732), (110366, 182852)]