81648700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{877}}^1$

素因数の和:924

約数の個数: 108

約数和(自身を含む): 217199640

約数和(自身を除く): 135550940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 49, 50, 70, 76, 95, 98, 100, 133, 140, 175, 190, 196, 245, 266, 350, 380, 475, 490, 532, 665, 700, 877, 931, 950, 980, 1225, 1330, 1754, 1862, 1900, 2450, 2660, 3325, 3508, 3724, 4385, 4655, 4900, 6139, 6650, 8770, 9310, 12278, 13300, 16663, 17540, 18620, 21925, 23275, 24556, 30695, 33326, 42973, 43850, 46550, 61390, 66652, 83315, 85946, 87700, 93100, 116641, 122780, 153475, 166630, 171892, 214865, 233282, 306950, 333260, 416575, 429730, 466564, 583205, 613900, 816487, 833150, 859460, 1074325, 1166410, 1632974, 1666300, 2148650, 2332820, 2916025, 3265948, 4082435, 4297300, 5832050, 8164870, 11664100, 16329740, 20412175, 40824350, 81648700]

約数ペア:

[(1, 81648700), (2, 40824350), (4, 20412175), (5, 16329740), (7, 11664100), (10, 8164870), (14, 5832050), (19, 4297300), (20, 4082435), (25, 3265948), (28, 2916025), (35, 2332820), (38, 2148650), (49, 1666300), (50, 1632974), (70, 1166410), (76, 1074325), (95, 859460), (98, 833150), (100, 816487), (133, 613900), (140, 583205), (175, 466564), (190, 429730), (196, 416575), (245, 333260), (266, 306950), (350, 233282), (380, 214865), (475, 171892), (490, 166630), (532, 153475), (665, 122780), (700, 116641), (877, 93100), (931, 87700), (950, 85946), (980, 83315), (1225, 66652), (1330, 61390), (1754, 46550), (1862, 43850), (1900, 42973), (2450, 33326), (2660, 30695), (3325, 24556), (3508, 23275), (3724, 21925), (4385, 18620), (4655, 17540), (4900, 16663), (6139, 13300), (6650, 12278), (8770, 9310)]