81180320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1318

約数の個数: 96

約数和(自身を含む): 213373440

約数和(自身を除く): 132193120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 520, 620, 806, 992, 1040, 1240, 1259, 1612, 2015, 2080, 2480, 2518, 3224, 4030, 4960, 5036, 6295, 6448, 8060, 10072, 12590, 12896, 16120, 16367, 20144, 25180, 32240, 32734, 39029, 40288, 50360, 64480, 65468, 78058, 81835, 100720, 130936, 156116, 163670, 195145, 201440, 261872, 312232, 327340, 390290, 507377, 523744, 624464, 654680, 780580, 1014754, 1248928, 1309360, 1561160, 2029508, 2536885, 2618720, 3122320, 4059016, 5073770, 6244640, 8118032, 10147540, 16236064, 20295080, 40590160, 81180320]

約数ペア:

[(1, 81180320), (2, 40590160), (4, 20295080), (5, 16236064), (8, 10147540), (10, 8118032), (13, 6244640), (16, 5073770), (20, 4059016), (26, 3122320), (31, 2618720), (32, 2536885), (40, 2029508), (52, 1561160), (62, 1309360), (65, 1248928), (80, 1014754), (104, 780580), (124, 654680), (130, 624464), (155, 523744), (160, 507377), (208, 390290), (248, 327340), (260, 312232), (310, 261872), (403, 201440), (416, 195145), (496, 163670), (520, 156116), (620, 130936), (806, 100720), (992, 81835), (1040, 78058), (1240, 65468), (1259, 64480), (1612, 50360), (2015, 40288), (2080, 39029), (2480, 32734), (2518, 32240), (3224, 25180), (4030, 20144), (4960, 16367), (5036, 16120), (6295, 12896), (6448, 12590), (8060, 10072)]