505958440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{31387}}^1$

素因数の和:31442

約数の個数: 64

約数和(自身を含む): 1265564160

約数和(自身を除く): 759605720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 16120, 31387, 62774, 125548, 156935, 251096, 313870, 408031, 627740, 816062, 972997, 1255480, 1632124, 1945994, 2040155, 3264248, 3891988, 4080310, 4864985, 7783976, 8160620, 9729970, 12648961, 16321240, 19459940, 25297922, 38919880, 50595844, 63244805, 101191688, 126489610, 252979220, 505958440]

約数ペア:

[(1, 505958440), (2, 252979220), (4, 126489610), (5, 101191688), (8, 63244805), (10, 50595844), (13, 38919880), (20, 25297922), (26, 19459940), (31, 16321240), (40, 12648961), (52, 9729970), (62, 8160620), (65, 7783976), (104, 4864985), (124, 4080310), (130, 3891988), (155, 3264248), (248, 2040155), (260, 1945994), (310, 1632124), (403, 1255480), (520, 972997), (620, 816062), (806, 627740), (1240, 408031), (1612, 313870), (2015, 251096), (3224, 156935), (4030, 125548), (8060, 62774), (16120, 31387)]