1328621968

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71647}}^1$

素因数の和:71735

約数の個数: 40

約数和(自身を含む): 2754149120

約数和(自身を除く): 1425527152

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1159, 2318, 4636, 9272, 18544, 71647, 143294, 286588, 573176, 1146352, 1361293, 2722586, 4370467, 5445172, 8740934, 10890344, 17481868, 21780688, 34963736, 69927472, 83038873, 166077746, 332155492, 664310984, 1328621968]

約数ペア:

[(1, 1328621968), (2, 664310984), (4, 332155492), (8, 166077746), (16, 83038873), (19, 69927472), (38, 34963736), (61, 21780688), (76, 17481868), (122, 10890344), (152, 8740934), (244, 5445172), (304, 4370467), (488, 2722586), (976, 1361293), (1159, 1146352), (2318, 573176), (4636, 286588), (9272, 143294), (18544, 71647)]