20158164

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2267}}^1$

素因数の和:2309

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 37630476

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2267, 2964, 4446, 4534, 6801, 8892, 9068, 13602, 20403, 27204, 29471, 40806, 43073, 58942, 81612, 86146, 88413, 117884, 129219, 172292, 176826, 258438, 265239, 353652, 387657, 516876, 530478, 559949, 775314, 1060956, 1119898, 1550628, 1679847, 2239796, 3359694, 5039541, 6719388, 10079082, 20158164]

約数ペア:

[(1, 20158164), (2, 10079082), (3, 6719388), (4, 5039541), (6, 3359694), (9, 2239796), (12, 1679847), (13, 1550628), (18, 1119898), (19, 1060956), (26, 775314), (36, 559949), (38, 530478), (39, 516876), (52, 387657), (57, 353652), (76, 265239), (78, 258438), (114, 176826), (117, 172292), (156, 129219), (171, 117884), (228, 88413), (234, 86146), (247, 81612), (342, 58942), (468, 43073), (494, 40806), (684, 29471), (741, 27204), (988, 20403), (1482, 13602), (2223, 9068), (2267, 8892), (2964, 6801), (4446, 4534)]