209773900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1440

約数の個数: 108

約数和(自身を含む): 547006656

約数和(自身を除く): 337232756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 49, 50, 62, 70, 98, 100, 124, 140, 155, 175, 196, 217, 245, 310, 350, 434, 490, 620, 700, 775, 868, 980, 1085, 1225, 1381, 1519, 1550, 2170, 2450, 2762, 3038, 3100, 4340, 4900, 5425, 5524, 6076, 6905, 7595, 9667, 10850, 13810, 15190, 19334, 21700, 27620, 30380, 34525, 37975, 38668, 42811, 48335, 67669, 69050, 75950, 85622, 96670, 135338, 138100, 151900, 171244, 193340, 214055, 241675, 270676, 299677, 338345, 428110, 483350, 599354, 676690, 856220, 966700, 1070275, 1198708, 1353380, 1498385, 1691725, 2097739, 2140550, 2996770, 3383450, 4195478, 4281100, 5993540, 6766900, 7491925, 8390956, 10488695, 14983850, 20977390, 29967700, 41954780, 52443475, 104886950, 209773900]

約数ペア:

[(1, 209773900), (2, 104886950), (4, 52443475), (5, 41954780), (7, 29967700), (10, 20977390), (14, 14983850), (20, 10488695), (25, 8390956), (28, 7491925), (31, 6766900), (35, 5993540), (49, 4281100), (50, 4195478), (62, 3383450), (70, 2996770), (98, 2140550), (100, 2097739), (124, 1691725), (140, 1498385), (155, 1353380), (175, 1198708), (196, 1070275), (217, 966700), (245, 856220), (310, 676690), (350, 599354), (434, 483350), (490, 428110), (620, 338345), (700, 299677), (775, 270676), (868, 241675), (980, 214055), (1085, 193340), (1225, 171244), (1381, 151900), (1519, 138100), (1550, 135338), (2170, 96670), (2450, 85622), (2762, 75950), (3038, 69050), (3100, 67669), (4340, 48335), (4900, 42811), (5425, 38668), (5524, 37975), (6076, 34525), (6905, 30380), (7595, 27620), (9667, 21700), (10850, 19334), (13810, 15190)]