18820328

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 36220800

約数和(自身を除く): 17400472

約数列:

[1, 2, 4, 8, 79, 97, 158, 194, 307, 316, 388, 614, 632, 776, 1228, 2456, 7663, 15326, 24253, 29779, 30652, 48506, 59558, 61304, 97012, 119116, 194024, 238232, 2352541, 4705082, 9410164, 18820328]

約数ペア:

[(1, 18820328), (2, 9410164), (4, 4705082), (8, 2352541), (79, 238232), (97, 194024), (158, 119116), (194, 97012), (307, 61304), (316, 59558), (388, 48506), (614, 30652), (632, 29779), (776, 24253), (1228, 15326), (2456, 7663)]