287993498

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7321}}^1$

素因数の和:7442

約数の個数: 32

約数和(自身を含む): 498188880

約数和(自身を除く): 210195382

約数列:

[1, 2, 13, 17, 26, 34, 89, 178, 221, 442, 1157, 1513, 2314, 3026, 7321, 14642, 19669, 39338, 95173, 124457, 190346, 248914, 651569, 1303138, 1617941, 3235882, 8470397, 11076673, 16940794, 22153346, 143996749, 287993498]

約数ペア:

[(1, 287993498), (2, 143996749), (13, 22153346), (17, 16940794), (26, 11076673), (34, 8470397), (89, 3235882), (178, 1617941), (221, 1303138), (442, 651569), (1157, 248914), (1513, 190346), (2314, 124457), (3026, 95173), (7321, 39338), (14642, 19669)]