399372272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{2333}}^1$

素因数の和:3177

約数の個数: 40

約数和(自身を含む): 834675744

約数和(自身を除く): 435303472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 823, 1646, 2333, 3292, 4666, 6584, 9332, 10699, 13168, 18664, 21398, 30329, 37328, 42796, 60658, 85592, 121316, 171184, 242632, 485264, 1920059, 3840118, 7680236, 15360472, 24960767, 30720944, 49921534, 99843068, 199686136, 399372272]

約数ペア:

[(1, 399372272), (2, 199686136), (4, 99843068), (8, 49921534), (13, 30720944), (16, 24960767), (26, 15360472), (52, 7680236), (104, 3840118), (208, 1920059), (823, 485264), (1646, 242632), (2333, 171184), (3292, 121316), (4666, 85592), (6584, 60658), (9332, 42796), (10699, 37328), (13168, 30329), (18664, 21398)]