72640048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20543}}^1$

素因数の和:20581

約数の個数: 40

約数和(自身を含む): 160489728

約数和(自身を除く): 87849680

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 20543, 41086, 82172, 164344, 267059, 328688, 349231, 534118, 698462, 1068236, 1396924, 2136472, 2793848, 4272944, 4540003, 5587696, 9080006, 18160012, 36320024, 72640048]

約数ペア:

[(1, 72640048), (2, 36320024), (4, 18160012), (8, 9080006), (13, 5587696), (16, 4540003), (17, 4272944), (26, 2793848), (34, 2136472), (52, 1396924), (68, 1068236), (104, 698462), (136, 534118), (208, 349231), (221, 328688), (272, 267059), (442, 164344), (884, 82172), (1768, 41086), (3536, 20543)]