81489328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8647}}^1$

素因数の和:8705

約数の個数: 40

約数和(自身を含む): 171576320

約数和(自身を除く): 90086992

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 8647, 9424, 17294, 34588, 69176, 138352, 164293, 268057, 328586, 536114, 657172, 1072228, 1314344, 2144456, 2628688, 4288912, 5093083, 10186166, 20372332, 40744664, 81489328]

約数ペア:

[(1, 81489328), (2, 40744664), (4, 20372332), (8, 10186166), (16, 5093083), (19, 4288912), (31, 2628688), (38, 2144456), (62, 1314344), (76, 1072228), (124, 657172), (152, 536114), (248, 328586), (304, 268057), (496, 164293), (589, 138352), (1178, 69176), (2356, 34588), (4712, 17294), (8647, 9424)]