397345708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{643}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 753016320

約数和(自身を除く): 355670612

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 173, 188, 346, 643, 692, 893, 1286, 1786, 2572, 3287, 3572, 6574, 8131, 12217, 13148, 16262, 24434, 30221, 32524, 48868, 60442, 111239, 120884, 154489, 222478, 308978, 444956, 574199, 617956, 1148398, 2113541, 2296796, 4227082, 5228233, 8454164, 10456466, 20912932, 99336427, 198672854, 397345708]

約数ペア:

[(1, 397345708), (2, 198672854), (4, 99336427), (19, 20912932), (38, 10456466), (47, 8454164), (76, 5228233), (94, 4227082), (173, 2296796), (188, 2113541), (346, 1148398), (643, 617956), (692, 574199), (893, 444956), (1286, 308978), (1786, 222478), (2572, 154489), (3287, 120884), (3572, 111239), (6574, 60442), (8131, 48868), (12217, 32524), (13148, 30221), (16262, 24434)]