210316820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{677}}^1$

素因数の和:1017

約数の個数: 72

約数和(自身を含む): 516155976

約数和(自身を除く): 305839156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 317, 490, 634, 677, 980, 1268, 1354, 1585, 2219, 2708, 3170, 3385, 4438, 4739, 6340, 6770, 8876, 9478, 11095, 13540, 15533, 18956, 22190, 23695, 31066, 33173, 44380, 47390, 62132, 66346, 77665, 94780, 132692, 155330, 165865, 214609, 310660, 331730, 429218, 663460, 858436, 1073045, 1502263, 2146090, 3004526, 4292180, 6009052, 7511315, 10515841, 15022630, 21031682, 30045260, 42063364, 52579205, 105158410, 210316820]

約数ペア:

[(1, 210316820), (2, 105158410), (4, 52579205), (5, 42063364), (7, 30045260), (10, 21031682), (14, 15022630), (20, 10515841), (28, 7511315), (35, 6009052), (49, 4292180), (70, 3004526), (98, 2146090), (140, 1502263), (196, 1073045), (245, 858436), (317, 663460), (490, 429218), (634, 331730), (677, 310660), (980, 214609), (1268, 165865), (1354, 155330), (1585, 132692), (2219, 94780), (2708, 77665), (3170, 66346), (3385, 62132), (4438, 47390), (4739, 44380), (6340, 33173), (6770, 31066), (8876, 23695), (9478, 22190), (11095, 18956), (13540, 15533)]