212396720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1422

約数の個数: 80

約数和(自身を含む): 521484480

約数和(自身を除く): 309087760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 356, 368, 445, 460, 712, 890, 920, 1297, 1424, 1780, 1840, 2047, 2594, 3560, 4094, 5188, 6485, 7120, 8188, 10235, 10376, 12970, 16376, 20470, 20752, 25940, 29831, 32752, 40940, 51880, 59662, 81880, 103760, 115433, 119324, 149155, 163760, 230866, 238648, 298310, 461732, 477296, 577165, 596620, 923464, 1154330, 1193240, 1846928, 2308660, 2386480, 2654959, 4617320, 5309918, 9234640, 10619836, 13274795, 21239672, 26549590, 42479344, 53099180, 106198360, 212396720]

約数ペア:

[(1, 212396720), (2, 106198360), (4, 53099180), (5, 42479344), (8, 26549590), (10, 21239672), (16, 13274795), (20, 10619836), (23, 9234640), (40, 5309918), (46, 4617320), (80, 2654959), (89, 2386480), (92, 2308660), (115, 1846928), (178, 1193240), (184, 1154330), (230, 923464), (356, 596620), (368, 577165), (445, 477296), (460, 461732), (712, 298310), (890, 238648), (920, 230866), (1297, 163760), (1424, 149155), (1780, 119324), (1840, 115433), (2047, 103760), (2594, 81880), (3560, 59662), (4094, 51880), (5188, 40940), (6485, 32752), (7120, 29831), (8188, 25940), (10235, 20752), (10376, 20470), (12970, 16376)]