391228680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:715

約数の個数: 128

約数和(自身を含む): 1219276800

約数和(自身を除く): 828048120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 251, 310, 372, 419, 465, 502, 620, 744, 753, 838, 930, 1004, 1240, 1255, 1257, 1506, 1676, 1860, 2008, 2095, 2510, 2514, 3012, 3352, 3720, 3765, 4190, 5020, 5028, 6024, 6285, 7530, 7781, 8380, 10040, 10056, 12570, 12989, 15060, 15562, 16760, 23343, 25140, 25978, 30120, 31124, 38905, 38967, 46686, 50280, 51956, 62248, 64945, 77810, 77934, 93372, 103912, 105169, 116715, 129890, 155620, 155868, 186744, 194835, 210338, 233430, 259780, 311240, 311736, 315507, 389670, 420676, 466860, 519560, 525845, 631014, 779340, 841352, 933720, 1051690, 1262028, 1558680, 1577535, 2103380, 2524056, 3155070, 3260239, 4206760, 6310140, 6520478, 9780717, 12620280, 13040956, 16301195, 19561434, 26081912, 32602390, 39122868, 48903585, 65204780, 78245736, 97807170, 130409560, 195614340, 391228680]

約数ペア:

[(1, 391228680), (2, 195614340), (3, 130409560), (4, 97807170), (5, 78245736), (6, 65204780), (8, 48903585), (10, 39122868), (12, 32602390), (15, 26081912), (20, 19561434), (24, 16301195), (30, 13040956), (31, 12620280), (40, 9780717), (60, 6520478), (62, 6310140), (93, 4206760), (120, 3260239), (124, 3155070), (155, 2524056), (186, 2103380), (248, 1577535), (251, 1558680), (310, 1262028), (372, 1051690), (419, 933720), (465, 841352), (502, 779340), (620, 631014), (744, 525845), (753, 519560), (838, 466860), (930, 420676), (1004, 389670), (1240, 315507), (1255, 311736), (1257, 311240), (1506, 259780), (1676, 233430), (1860, 210338), (2008, 194835), (2095, 186744), (2510, 155868), (2514, 155620), (3012, 129890), (3352, 116715), (3720, 105169), (3765, 103912), (4190, 93372), (5020, 77934), (5028, 77810), (6024, 64945), (6285, 62248), (7530, 51956), (7781, 50280), (8380, 46686), (10040, 38967), (10056, 38905), (12570, 31124), (12989, 30120), (15060, 25978), (15562, 25140), (16760, 23343)]