20256392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 43330560

約数和(自身を除く): 23074168

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 61, 62, 103, 104, 122, 124, 206, 244, 248, 403, 412, 488, 793, 806, 824, 1339, 1586, 1612, 1891, 2678, 3172, 3193, 3224, 3782, 5356, 6283, 6344, 6386, 7564, 10712, 12566, 12772, 15128, 24583, 25132, 25544, 41509, 49166, 50264, 81679, 83018, 98332, 163358, 166036, 194773, 196664, 326716, 332072, 389546, 653432, 779092, 1558184, 2532049, 5064098, 10128196, 20256392]

約数ペア:

[(1, 20256392), (2, 10128196), (4, 5064098), (8, 2532049), (13, 1558184), (26, 779092), (31, 653432), (52, 389546), (61, 332072), (62, 326716), (103, 196664), (104, 194773), (122, 166036), (124, 163358), (206, 98332), (244, 83018), (248, 81679), (403, 50264), (412, 49166), (488, 41509), (793, 25544), (806, 25132), (824, 24583), (1339, 15128), (1586, 12772), (1612, 12566), (1891, 10712), (2678, 7564), (3172, 6386), (3193, 6344), (3224, 6283), (3782, 5356)]