81297808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{15731}}^1$

素因数の和:15775

約数の個数: 40

約数和(自身を含む): 175569120

約数和(自身を除く): 94271312

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 15731, 31462, 62924, 125848, 251696, 267427, 298889, 534854, 597778, 1069708, 1195556, 2139416, 2391112, 4278832, 4782224, 5081113, 10162226, 20324452, 40648904, 81297808]

約数ペア:

[(1, 81297808), (2, 40648904), (4, 20324452), (8, 10162226), (16, 5081113), (17, 4782224), (19, 4278832), (34, 2391112), (38, 2139416), (68, 1195556), (76, 1069708), (136, 597778), (152, 534854), (272, 298889), (304, 267427), (323, 251696), (646, 125848), (1292, 62924), (2584, 31462), (5168, 15731)]