212992020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4951}}^1$

素因数の和:5205

約数の個数: 72

約数和(自身を含む): 648910080

約数和(自身を除く): 435918060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 2151, 2390, 2868, 3585, 4302, 4780, 4951, 7170, 8604, 9902, 10755, 14340, 14853, 19804, 21510, 24755, 29706, 43020, 44559, 49510, 59412, 74265, 89118, 99020, 148530, 178236, 222795, 297060, 445590, 891180, 1183289, 2366578, 3549867, 4733156, 5916445, 7099734, 10649601, 11832890, 14199468, 17749335, 21299202, 23665780, 35498670, 42598404, 53248005, 70997340, 106496010, 212992020]

約数ペア:

[(1, 212992020), (2, 106496010), (3, 70997340), (4, 53248005), (5, 42598404), (6, 35498670), (9, 23665780), (10, 21299202), (12, 17749335), (15, 14199468), (18, 11832890), (20, 10649601), (30, 7099734), (36, 5916445), (45, 4733156), (60, 3549867), (90, 2366578), (180, 1183289), (239, 891180), (478, 445590), (717, 297060), (956, 222795), (1195, 178236), (1434, 148530), (2151, 99020), (2390, 89118), (2868, 74265), (3585, 59412), (4302, 49510), (4780, 44559), (4951, 43020), (7170, 29706), (8604, 24755), (9902, 21510), (10755, 19804), (14340, 14853)]