1980449600

素因数分解:

$2^6\times 5^2\times {\mathrm{239}}^1\times {\mathrm{5179}}^1$

素因数の和:5440

約数の個数: 84

約数和(自身を含む): 4894478400

約数和(自身を除く): 2914028800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 239, 320, 400, 478, 800, 956, 1195, 1600, 1912, 2390, 3824, 4780, 5179, 5975, 7648, 9560, 10358, 11950, 15296, 19120, 20716, 23900, 25895, 38240, 41432, 47800, 51790, 76480, 82864, 95600, 103580, 129475, 165728, 191200, 207160, 258950, 331456, 382400, 414320, 517900, 828640, 1035800, 1237781, 1657280, 2071600, 2475562, 4143200, 4951124, 6188905, 8286400, 9902248, 12377810, 19804496, 24755620, 30944525, 39608992, 49511240, 61889050, 79217984, 99022480, 123778100, 198044960, 247556200, 396089920, 495112400, 990224800, 1980449600]

約数ペア:

[(1, 1980449600), (2, 990224800), (4, 495112400), (5, 396089920), (8, 247556200), (10, 198044960), (16, 123778100), (20, 99022480), (25, 79217984), (32, 61889050), (40, 49511240), (50, 39608992), (64, 30944525), (80, 24755620), (100, 19804496), (160, 12377810), (200, 9902248), (239, 8286400), (320, 6188905), (400, 4951124), (478, 4143200), (800, 2475562), (956, 2071600), (1195, 1657280), (1600, 1237781), (1912, 1035800), (2390, 828640), (3824, 517900), (4780, 414320), (5179, 382400), (5975, 331456), (7648, 258950), (9560, 207160), (10358, 191200), (11950, 165728), (15296, 129475), (19120, 103580), (20716, 95600), (23900, 82864), (25895, 76480), (38240, 51790), (41432, 47800)]