81138720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13003}}^1$

素因数の和:13034

約数の個数: 96

約数和(自身を含む): 275268672

約数和(自身を除く): 194129952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 6240, 13003, 26006, 39009, 52012, 65015, 78018, 104024, 130030, 156036, 169039, 195045, 208048, 260060, 312072, 338078, 390090, 416096, 507117, 520120, 624144, 676156, 780180, 845195, 1014234, 1040240, 1248288, 1352312, 1560360, 1690390, 2028468, 2080480, 2535585, 2704624, 3120720, 3380780, 4056936, 5071170, 5409248, 6241440, 6761560, 8113872, 10142340, 13523120, 16227744, 20284680, 27046240, 40569360, 81138720]

約数ペア:

[(1, 81138720), (2, 40569360), (3, 27046240), (4, 20284680), (5, 16227744), (6, 13523120), (8, 10142340), (10, 8113872), (12, 6761560), (13, 6241440), (15, 5409248), (16, 5071170), (20, 4056936), (24, 3380780), (26, 3120720), (30, 2704624), (32, 2535585), (39, 2080480), (40, 2028468), (48, 1690390), (52, 1560360), (60, 1352312), (65, 1248288), (78, 1040240), (80, 1014234), (96, 845195), (104, 780180), (120, 676156), (130, 624144), (156, 520120), (160, 507117), (195, 416096), (208, 390090), (240, 338078), (260, 312072), (312, 260060), (390, 208048), (416, 195045), (480, 169039), (520, 156036), (624, 130030), (780, 104024), (1040, 78018), (1248, 65015), (1560, 52012), (2080, 39009), (3120, 26006), (6240, 13003)]