31077720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{499}}^1$

素因数の和:689

約数の個数: 96

約数和(自身を含む): 101790000

約数和(自身を除く): 70712280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 173, 180, 346, 360, 499, 519, 692, 865, 998, 1038, 1384, 1497, 1557, 1730, 1996, 2076, 2495, 2595, 2994, 3114, 3460, 3992, 4152, 4491, 4990, 5190, 5988, 6228, 6920, 7485, 7785, 8982, 9980, 10380, 11976, 12456, 14970, 15570, 17964, 19960, 20760, 22455, 29940, 31140, 35928, 44910, 59880, 62280, 86327, 89820, 172654, 179640, 258981, 345308, 431635, 517962, 690616, 776943, 863270, 1035924, 1294905, 1553886, 1726540, 2071848, 2589810, 3107772, 3453080, 3884715, 5179620, 6215544, 7769430, 10359240, 15538860, 31077720]

約数ペア:

[(1, 31077720), (2, 15538860), (3, 10359240), (4, 7769430), (5, 6215544), (6, 5179620), (8, 3884715), (9, 3453080), (10, 3107772), (12, 2589810), (15, 2071848), (18, 1726540), (20, 1553886), (24, 1294905), (30, 1035924), (36, 863270), (40, 776943), (45, 690616), (60, 517962), (72, 431635), (90, 345308), (120, 258981), (173, 179640), (180, 172654), (346, 89820), (360, 86327), (499, 62280), (519, 59880), (692, 44910), (865, 35928), (998, 31140), (1038, 29940), (1384, 22455), (1497, 20760), (1557, 19960), (1730, 17964), (1996, 15570), (2076, 14970), (2495, 12456), (2595, 11976), (2994, 10380), (3114, 9980), (3460, 8982), (3992, 7785), (4152, 7485), (4491, 6920), (4990, 6228), (5190, 5988)]