157217740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4157}}^1$

素因数の和:4258

約数の個数: 48

約数和(自身を含む): 346477824

約数和(自身を除く): 189260084

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 4157, 7564, 8314, 9455, 16628, 18910, 20785, 37820, 41570, 83140, 128867, 253577, 257734, 507154, 515468, 644335, 1014308, 1267885, 1288670, 2535770, 2577340, 5071540, 7860887, 15721774, 31443548, 39304435, 78608870, 157217740]

約数ペア:

[(1, 157217740), (2, 78608870), (4, 39304435), (5, 31443548), (10, 15721774), (20, 7860887), (31, 5071540), (61, 2577340), (62, 2535770), (122, 1288670), (124, 1267885), (155, 1014308), (244, 644335), (305, 515468), (310, 507154), (610, 257734), (620, 253577), (1220, 128867), (1891, 83140), (3782, 41570), (4157, 37820), (7564, 20785), (8314, 18910), (9455, 16628)]