915740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 2279424

約数和(自身を除く): 1363684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 211, 217, 310, 422, 434, 620, 844, 868, 1055, 1085, 1477, 2110, 2170, 2954, 4220, 4340, 5908, 6541, 7385, 13082, 14770, 26164, 29540, 32705, 45787, 65410, 91574, 130820, 183148, 228935, 457870, 915740]

約数ペア:

[(1, 915740), (2, 457870), (4, 228935), (5, 183148), (7, 130820), (10, 91574), (14, 65410), (20, 45787), (28, 32705), (31, 29540), (35, 26164), (62, 14770), (70, 13082), (124, 7385), (140, 6541), (155, 5908), (211, 4340), (217, 4220), (310, 2954), (422, 2170), (434, 2110), (620, 1477), (844, 1085), (868, 1055)]