72640864

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1993}}^1$

素因数の和:2087

約数の個数: 48

約数和(自身を含む): 153761328

約数和(自身を除く): 81120464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 67, 68, 134, 136, 268, 272, 536, 544, 1072, 1139, 1993, 2144, 2278, 3986, 4556, 7972, 9112, 15944, 18224, 31888, 33881, 36448, 63776, 67762, 133531, 135524, 267062, 271048, 534124, 542096, 1068248, 1084192, 2136496, 2270027, 4272992, 4540054, 9080108, 18160216, 36320432, 72640864]

約数ペア:

[(1, 72640864), (2, 36320432), (4, 18160216), (8, 9080108), (16, 4540054), (17, 4272992), (32, 2270027), (34, 2136496), (67, 1084192), (68, 1068248), (134, 542096), (136, 534124), (268, 271048), (272, 267062), (536, 135524), (544, 133531), (1072, 67762), (1139, 63776), (1993, 36448), (2144, 33881), (2278, 31888), (3986, 18224), (4556, 15944), (7972, 9112)]