1981271340

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{407669}}^1$

素因数の和:407693

約数の個数: 72

約数和(自身を含む): 6232458960

約数和(自身を除く): 4251187620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 407669, 815338, 1223007, 1630676, 2038345, 2446014, 3669021, 4076690, 4892028, 6115035, 7338042, 8153380, 11007063, 12230070, 14676084, 18345105, 22014126, 24460140, 33021189, 36690210, 44028252, 55035315, 66042378, 73380420, 99063567, 110070630, 132084756, 165105945, 198127134, 220141260, 330211890, 396254268, 495317835, 660423780, 990635670, 1981271340]

約数ペア:

[(1, 1981271340), (2, 990635670), (3, 660423780), (4, 495317835), (5, 396254268), (6, 330211890), (9, 220141260), (10, 198127134), (12, 165105945), (15, 132084756), (18, 110070630), (20, 99063567), (27, 73380420), (30, 66042378), (36, 55035315), (45, 44028252), (54, 36690210), (60, 33021189), (81, 24460140), (90, 22014126), (108, 18345105), (135, 14676084), (162, 12230070), (180, 11007063), (243, 8153380), (270, 7338042), (324, 6115035), (405, 4892028), (486, 4076690), (540, 3669021), (810, 2446014), (972, 2038345), (1215, 1630676), (1620, 1223007), (2430, 815338), (4860, 407669)]