320968334440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{156781}}^1$

素因数の和:156963

約数の個数: 128

約数和(自身を含む): 809145630720

約数和(自身を除く): 488177296280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 127, 130, 155, 248, 254, 260, 310, 403, 508, 520, 620, 635, 806, 1016, 1240, 1270, 1612, 1651, 2015, 2540, 3224, 3302, 3937, 4030, 5080, 6604, 7874, 8060, 8255, 13208, 15748, 16120, 16510, 19685, 31496, 33020, 39370, 51181, 66040, 78740, 102362, 156781, 157480, 204724, 255905, 313562, 409448, 511810, 627124, 783905, 1023620, 1254248, 1567810, 2038153, 2047240, 3135620, 4076306, 4860211, 6271240, 8152612, 9720422, 10190765, 16305224, 19440844, 19911187, 20381530, 24301055, 38881688, 39822374, 40763060, 48602110, 63182743, 79644748, 81526120, 97204220, 99555935, 126365486, 159289496, 194408440, 199111870, 252730972, 258845431, 315913715, 398223740, 505461944, 517690862, 617246797, 631827430, 796447480, 1035381724, 1234493594, 1263654860, 1294227155, 2070763448, 2468987188, 2527309720, 2588454310, 3086233985, 4937974376, 5176908620, 6172467970, 8024208361, 10353817240, 12344935940, 16048416722, 24689871880, 32096833444, 40121041805, 64193666888, 80242083610, 160484167220, 320968334440]

約数ペア:

[(1, 320968334440), (2, 160484167220), (4, 80242083610), (5, 64193666888), (8, 40121041805), (10, 32096833444), (13, 24689871880), (20, 16048416722), (26, 12344935940), (31, 10353817240), (40, 8024208361), (52, 6172467970), (62, 5176908620), (65, 4937974376), (104, 3086233985), (124, 2588454310), (127, 2527309720), (130, 2468987188), (155, 2070763448), (248, 1294227155), (254, 1263654860), (260, 1234493594), (310, 1035381724), (403, 796447480), (508, 631827430), (520, 617246797), (620, 517690862), (635, 505461944), (806, 398223740), (1016, 315913715), (1240, 258845431), (1270, 252730972), (1612, 199111870), (1651, 194408440), (2015, 159289496), (2540, 126365486), (3224, 99555935), (3302, 97204220), (3937, 81526120), (4030, 79644748), (5080, 63182743), (6604, 48602110), (7874, 40763060), (8060, 39822374), (8255, 38881688), (13208, 24301055), (15748, 20381530), (16120, 19911187), (16510, 19440844), (19685, 16305224), (31496, 10190765), (33020, 9720422), (39370, 8152612), (51181, 6271240), (66040, 4860211), (78740, 4076306), (102362, 3135620), (156781, 2047240), (157480, 2038153), (204724, 1567810), (255905, 1254248), (313562, 1023620), (409448, 783905), (511810, 627124)]