25263760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 61996032

約数和(自身を除く): 36732272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 61, 62, 80, 122, 124, 155, 167, 244, 248, 305, 310, 334, 488, 496, 610, 620, 668, 835, 976, 1220, 1240, 1336, 1670, 1891, 2440, 2480, 2672, 3340, 3782, 4880, 5177, 6680, 7564, 9455, 10187, 10354, 13360, 15128, 18910, 20374, 20708, 25885, 30256, 37820, 40748, 41416, 50935, 51770, 75640, 81496, 82832, 101870, 103540, 151280, 162992, 203740, 207080, 315797, 407480, 414160, 631594, 814960, 1263188, 1578985, 2526376, 3157970, 5052752, 6315940, 12631880, 25263760]

約数ペア:

[(1, 25263760), (2, 12631880), (4, 6315940), (5, 5052752), (8, 3157970), (10, 2526376), (16, 1578985), (20, 1263188), (31, 814960), (40, 631594), (61, 414160), (62, 407480), (80, 315797), (122, 207080), (124, 203740), (155, 162992), (167, 151280), (244, 103540), (248, 101870), (305, 82832), (310, 81496), (334, 75640), (488, 51770), (496, 50935), (610, 41416), (620, 40748), (668, 37820), (835, 30256), (976, 25885), (1220, 20708), (1240, 20374), (1336, 18910), (1670, 15128), (1891, 13360), (2440, 10354), (2480, 10187), (2672, 9455), (3340, 7564), (3782, 6680), (4880, 5177)]