157974140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4177}}^1$

素因数の和:4278

約数の個数: 48

約数和(自身を含む): 348144384

約数和(自身を除く): 190170244

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 4177, 7564, 8354, 9455, 16708, 18910, 20885, 37820, 41770, 83540, 129487, 254797, 258974, 509594, 517948, 647435, 1019188, 1273985, 1294870, 2547970, 2589740, 5095940, 7898707, 15797414, 31594828, 39493535, 78987070, 157974140]

約数ペア:

[(1, 157974140), (2, 78987070), (4, 39493535), (5, 31594828), (10, 15797414), (20, 7898707), (31, 5095940), (61, 2589740), (62, 2547970), (122, 1294870), (124, 1273985), (155, 1019188), (244, 647435), (305, 517948), (310, 509594), (610, 258974), (620, 254797), (1220, 129487), (1891, 83540), (3782, 41770), (4177, 37820), (7564, 20885), (8354, 18910), (9455, 16708)]