28822240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:552

約数の個数: 72

約数和(自身を含む): 72009000

約数和(自身を除く): 43186760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 361, 380, 499, 608, 722, 760, 998, 1444, 1520, 1805, 1996, 2495, 2888, 3040, 3610, 3992, 4990, 5776, 7220, 7984, 9481, 9980, 11552, 14440, 15968, 18962, 19960, 28880, 37924, 39920, 47405, 57760, 75848, 79840, 94810, 151696, 180139, 189620, 303392, 360278, 379240, 720556, 758480, 900695, 1441112, 1516960, 1801390, 2882224, 3602780, 5764448, 7205560, 14411120, 28822240]

約数ペア:

[(1, 28822240), (2, 14411120), (4, 7205560), (5, 5764448), (8, 3602780), (10, 2882224), (16, 1801390), (19, 1516960), (20, 1441112), (32, 900695), (38, 758480), (40, 720556), (76, 379240), (80, 360278), (95, 303392), (152, 189620), (160, 180139), (190, 151696), (304, 94810), (361, 79840), (380, 75848), (499, 57760), (608, 47405), (722, 39920), (760, 37924), (998, 28880), (1444, 19960), (1520, 18962), (1805, 15968), (1996, 14440), (2495, 11552), (2888, 9980), (3040, 9481), (3610, 7984), (3992, 7220), (4990, 5776)]