81192016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2593}}^1$

素因数の和:2723

約数の個数: 40

約数和(自身を含む): 167261120

約数和(自身を除く): 86069104

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 103, 152, 206, 304, 412, 824, 1648, 1957, 2593, 3914, 5186, 7828, 10372, 15656, 20744, 31312, 41488, 49267, 98534, 197068, 267079, 394136, 534158, 788272, 1068316, 2136632, 4273264, 5074501, 10149002, 20298004, 40596008, 81192016]

約数ペア:

[(1, 81192016), (2, 40596008), (4, 20298004), (8, 10149002), (16, 5074501), (19, 4273264), (38, 2136632), (76, 1068316), (103, 788272), (152, 534158), (206, 394136), (304, 267079), (412, 197068), (824, 98534), (1648, 49267), (1957, 41488), (2593, 31312), (3914, 20744), (5186, 15656), (7828, 10372)]