72840720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1361}}^1$

素因数の和:1600

約数の個数: 80

約数和(自身を含む): 226985472

約数和(自身を除く): 154144752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 223, 240, 446, 669, 892, 1115, 1338, 1361, 1784, 2230, 2676, 2722, 3345, 3568, 4083, 4460, 5352, 5444, 6690, 6805, 8166, 8920, 10704, 10888, 13380, 13610, 16332, 17840, 20415, 21776, 26760, 27220, 32664, 40830, 53520, 54440, 65328, 81660, 108880, 163320, 303503, 326640, 607006, 910509, 1214012, 1517515, 1821018, 2428024, 3035030, 3642036, 4552545, 4856048, 6070060, 7284072, 9105090, 12140120, 14568144, 18210180, 24280240, 36420360, 72840720]

約数ペア:

[(1, 72840720), (2, 36420360), (3, 24280240), (4, 18210180), (5, 14568144), (6, 12140120), (8, 9105090), (10, 7284072), (12, 6070060), (15, 4856048), (16, 4552545), (20, 3642036), (24, 3035030), (30, 2428024), (40, 1821018), (48, 1517515), (60, 1214012), (80, 910509), (120, 607006), (223, 326640), (240, 303503), (446, 163320), (669, 108880), (892, 81660), (1115, 65328), (1338, 54440), (1361, 53520), (1784, 40830), (2230, 32664), (2676, 27220), (2722, 26760), (3345, 21776), (3568, 20415), (4083, 17840), (4460, 16332), (5352, 13610), (5444, 13380), (6690, 10888), (6805, 10704), (8166, 8920)]