1285286872

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 2503872000

約数和(自身を除く): 1218585128

約数列:

[1, 2, 4, 8, 71, 83, 137, 142, 166, 199, 274, 284, 332, 398, 548, 568, 664, 796, 1096, 1592, 5893, 9727, 11371, 11786, 14129, 16517, 19454, 22742, 23572, 27263, 28258, 33034, 38908, 45484, 47144, 54526, 56516, 66068, 77816, 90968, 109052, 113032, 132136, 218104, 807341, 1172707, 1614682, 1935673, 2262829, 2345414, 3229364, 3871346, 4525658, 4690828, 6458728, 7742692, 9051316, 9381656, 15485384, 18102632, 160660859, 321321718, 642643436, 1285286872]

約数ペア:

[(1, 1285286872), (2, 642643436), (4, 321321718), (8, 160660859), (71, 18102632), (83, 15485384), (137, 9381656), (142, 9051316), (166, 7742692), (199, 6458728), (274, 4690828), (284, 4525658), (332, 3871346), (398, 3229364), (548, 2345414), (568, 2262829), (664, 1935673), (796, 1614682), (1096, 1172707), (1592, 807341), (5893, 218104), (9727, 132136), (11371, 113032), (11786, 109052), (14129, 90968), (16517, 77816), (19454, 66068), (22742, 56516), (23572, 54526), (27263, 47144), (28258, 45484), (33034, 38908)]