287368540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 666792000

約数和(自身を除く): 379423460

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 89, 95, 116, 145, 178, 190, 290, 293, 356, 380, 445, 551, 580, 586, 890, 1102, 1172, 1465, 1691, 1780, 2204, 2581, 2755, 2930, 3382, 5162, 5510, 5567, 5860, 6764, 8455, 8497, 10324, 11020, 11134, 12905, 16910, 16994, 22268, 25810, 26077, 27835, 33820, 33988, 42485, 49039, 51620, 52154, 55670, 84970, 98078, 104308, 111340, 130385, 161443, 169940, 196156, 245195, 260770, 322886, 490390, 495463, 521540, 645772, 756233, 807215, 980780, 990926, 1512466, 1614430, 1981852, 2477315, 3024932, 3228860, 3781165, 4954630, 7562330, 9909260, 14368427, 15124660, 28736854, 57473708, 71842135, 143684270, 287368540]

約数ペア:

[(1, 287368540), (2, 143684270), (4, 71842135), (5, 57473708), (10, 28736854), (19, 15124660), (20, 14368427), (29, 9909260), (38, 7562330), (58, 4954630), (76, 3781165), (89, 3228860), (95, 3024932), (116, 2477315), (145, 1981852), (178, 1614430), (190, 1512466), (290, 990926), (293, 980780), (356, 807215), (380, 756233), (445, 645772), (551, 521540), (580, 495463), (586, 490390), (890, 322886), (1102, 260770), (1172, 245195), (1465, 196156), (1691, 169940), (1780, 161443), (2204, 130385), (2581, 111340), (2755, 104308), (2930, 98078), (3382, 84970), (5162, 55670), (5510, 52154), (5567, 51620), (5860, 49039), (6764, 42485), (8455, 33988), (8497, 33820), (10324, 27835), (11020, 26077), (11134, 25810), (12905, 22268), (16910, 16994)]