20786587952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1033}}^1\times {\mathrm{1087}}^1$

素因数の和:2230

約数の個数: 80

約数和(自身を含む): 43942187520

約数和(自身を除く): 23155599568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1033, 1087, 1157, 1424, 2066, 2174, 2314, 4132, 4348, 4628, 8264, 8696, 9256, 13429, 14131, 16528, 17392, 18512, 26858, 28262, 53716, 56524, 91937, 96743, 107432, 113048, 183874, 193486, 214864, 226096, 367748, 386972, 735496, 773944, 1122871, 1195181, 1257659, 1470992, 1547888, 2245742, 2390362, 2515318, 4491484, 4780724, 5030636, 8982968, 9561448, 10061272, 14597323, 17965936, 19122896, 20122544, 29194646, 58389292, 99935519, 116778584, 199871038, 233557168, 399742076, 799484152, 1299161747, 1598968304, 2598323494, 5196646988, 10393293976, 20786587952]

約数ペア:

[(1, 20786587952), (2, 10393293976), (4, 5196646988), (8, 2598323494), (13, 1598968304), (16, 1299161747), (26, 799484152), (52, 399742076), (89, 233557168), (104, 199871038), (178, 116778584), (208, 99935519), (356, 58389292), (712, 29194646), (1033, 20122544), (1087, 19122896), (1157, 17965936), (1424, 14597323), (2066, 10061272), (2174, 9561448), (2314, 8982968), (4132, 5030636), (4348, 4780724), (4628, 4491484), (8264, 2515318), (8696, 2390362), (9256, 2245742), (13429, 1547888), (14131, 1470992), (16528, 1257659), (17392, 1195181), (18512, 1122871), (26858, 773944), (28262, 735496), (53716, 386972), (56524, 367748), (91937, 226096), (96743, 214864), (107432, 193486), (113048, 183874)]