638989832

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 1316044800

約数和(自身を除く): 677054968

約数列:

[1, 2, 4, 8, 13, 26, 52, 101, 104, 127, 202, 254, 404, 479, 508, 808, 958, 1016, 1313, 1651, 1916, 2626, 3302, 3832, 5252, 6227, 6604, 10504, 12454, 12827, 13208, 24908, 25654, 48379, 49816, 51308, 60833, 96758, 102616, 121666, 166751, 193516, 243332, 333502, 387032, 486664, 628927, 667004, 790829, 1257854, 1334008, 1581658, 2515708, 3163316, 5031416, 6144133, 6326632, 12288266, 24576532, 49153064, 79873729, 159747458, 319494916, 638989832]

約数ペア:

[(1, 638989832), (2, 319494916), (4, 159747458), (8, 79873729), (13, 49153064), (26, 24576532), (52, 12288266), (101, 6326632), (104, 6144133), (127, 5031416), (202, 3163316), (254, 2515708), (404, 1581658), (479, 1334008), (508, 1257854), (808, 790829), (958, 667004), (1016, 628927), (1313, 486664), (1651, 387032), (1916, 333502), (2626, 243332), (3302, 193516), (3832, 166751), (5252, 121666), (6227, 102616), (6604, 96758), (10504, 60833), (12454, 51308), (12827, 49816), (13208, 48379), (24908, 25654)]