81193944

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1321}}^1$

素因数の和:1540

約数の個数: 64

約数和(自身を含む): 219875040

約数和(自身を除く): 138681096

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 197, 312, 394, 591, 788, 1182, 1321, 1576, 2364, 2561, 2642, 3963, 4728, 5122, 5284, 7683, 7926, 10244, 10568, 15366, 15852, 17173, 20488, 30732, 31704, 34346, 51519, 61464, 68692, 103038, 137384, 206076, 260237, 412152, 520474, 780711, 1040948, 1561422, 2081896, 3122844, 3383081, 6245688, 6766162, 10149243, 13532324, 20298486, 27064648, 40596972, 81193944]

約数ペア:

[(1, 81193944), (2, 40596972), (3, 27064648), (4, 20298486), (6, 13532324), (8, 10149243), (12, 6766162), (13, 6245688), (24, 3383081), (26, 3122844), (39, 2081896), (52, 1561422), (78, 1040948), (104, 780711), (156, 520474), (197, 412152), (312, 260237), (394, 206076), (591, 137384), (788, 103038), (1182, 68692), (1321, 61464), (1576, 51519), (2364, 34346), (2561, 31704), (2642, 30732), (3963, 20488), (4728, 17173), (5122, 15852), (5284, 15366), (7683, 10568), (7926, 10244)]