65664800

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1138

約数の個数: 72

約数和(自身を含む): 162489600

約数和(自身を除く): 96824800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 316, 395, 400, 632, 790, 800, 1039, 1264, 1580, 1975, 2078, 2528, 3160, 3950, 4156, 5195, 6320, 7900, 8312, 10390, 12640, 15800, 16624, 20780, 25975, 31600, 33248, 41560, 51950, 63200, 82081, 83120, 103900, 164162, 166240, 207800, 328324, 410405, 415600, 656648, 820810, 831200, 1313296, 1641620, 2052025, 2626592, 3283240, 4104050, 6566480, 8208100, 13132960, 16416200, 32832400, 65664800]

約数ペア:

[(1, 65664800), (2, 32832400), (4, 16416200), (5, 13132960), (8, 8208100), (10, 6566480), (16, 4104050), (20, 3283240), (25, 2626592), (32, 2052025), (40, 1641620), (50, 1313296), (79, 831200), (80, 820810), (100, 656648), (158, 415600), (160, 410405), (200, 328324), (316, 207800), (395, 166240), (400, 164162), (632, 103900), (790, 83120), (800, 82081), (1039, 63200), (1264, 51950), (1580, 41560), (1975, 33248), (2078, 31600), (2528, 25975), (3160, 20780), (3950, 16624), (4156, 15800), (5195, 12640), (6320, 10390), (7900, 8312)]