20646223640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1151}}^1\times {\mathrm{64063}}^1$

素因数の和:65232

約数の個数: 64

約数和(自身を含む): 53137244160

約数和(自身を除く): 32491020520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1151, 2302, 4604, 5755, 8057, 9208, 11510, 16114, 23020, 32228, 40285, 46040, 64063, 64456, 80570, 128126, 161140, 256252, 320315, 322280, 448441, 512504, 640630, 896882, 1281260, 1793764, 2242205, 2562520, 3587528, 4484410, 8968820, 17937640, 73736513, 147473026, 294946052, 368682565, 516155591, 589892104, 737365130, 1032311182, 1474730260, 2064622364, 2580777955, 2949460520, 4129244728, 5161555910, 10323111820, 20646223640]

約数ペア:

[(1, 20646223640), (2, 10323111820), (4, 5161555910), (5, 4129244728), (7, 2949460520), (8, 2580777955), (10, 2064622364), (14, 1474730260), (20, 1032311182), (28, 737365130), (35, 589892104), (40, 516155591), (56, 368682565), (70, 294946052), (140, 147473026), (280, 73736513), (1151, 17937640), (2302, 8968820), (4604, 4484410), (5755, 3587528), (8057, 2562520), (9208, 2242205), (11510, 1793764), (16114, 1281260), (23020, 896882), (32228, 640630), (40285, 512504), (46040, 448441), (64063, 322280), (64456, 320315), (80570, 256252), (128126, 161140)]