18440812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^2\times {\mathrm{79}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 35726880

約数和(自身を除く): 17286068

約数列:

[1, 2, 4, 13, 26, 52, 67, 79, 134, 158, 268, 316, 871, 1027, 1742, 2054, 3484, 4108, 4489, 5293, 8978, 10586, 17956, 21172, 58357, 68809, 116714, 137618, 233428, 275236, 354631, 709262, 1418524, 4610203, 9220406, 18440812]

約数ペア:

[(1, 18440812), (2, 9220406), (4, 4610203), (13, 1418524), (26, 709262), (52, 354631), (67, 275236), (79, 233428), (134, 137618), (158, 116714), (268, 68809), (316, 58357), (871, 21172), (1027, 17956), (1742, 10586), (2054, 8978), (3484, 5293), (4108, 4489)]