449976020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{1987}}^1$

素因数の和:2089

約数の個数: 72

約数和(自身を含む): 1039024224

約数和(自身を除く): 589048204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 670, 676, 845, 871, 1340, 1690, 1742, 1987, 3380, 3484, 3974, 4355, 7948, 8710, 9935, 11323, 17420, 19870, 22646, 25831, 39740, 45292, 51662, 56615, 103324, 113230, 129155, 133129, 226460, 258310, 266258, 335803, 516620, 532516, 665645, 671606, 1331290, 1343212, 1679015, 1730677, 2662580, 3358030, 3461354, 6716060, 6922708, 8653385, 17306770, 22498801, 34613540, 44997602, 89995204, 112494005, 224988010, 449976020]

約数ペア:

[(1, 449976020), (2, 224988010), (4, 112494005), (5, 89995204), (10, 44997602), (13, 34613540), (20, 22498801), (26, 17306770), (52, 8653385), (65, 6922708), (67, 6716060), (130, 3461354), (134, 3358030), (169, 2662580), (260, 1730677), (268, 1679015), (335, 1343212), (338, 1331290), (670, 671606), (676, 665645), (845, 532516), (871, 516620), (1340, 335803), (1690, 266258), (1742, 258310), (1987, 226460), (3380, 133129), (3484, 129155), (3974, 113230), (4355, 103324), (7948, 56615), (8710, 51662), (9935, 45292), (11323, 39740), (17420, 25831), (19870, 22646)]