209449040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1404

約数の個数: 80

約数和(自身を含む): 514252800

約数和(自身を除く): 304803760

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, 1279, 1424, 1780, 1840, 2047, 2558, 3560, 4094, 5116, 6395, 7120, 8188, 10232, 10235, 12790, 16376, 20464, 20470, 25580, 29417, 32752, 40940, 51160, 58834, 81880, 102320, 113831, 117668, 147085, 163760, 227662, 235336, 294170, 455324, 470672, 569155, 588340, 910648, 1138310, 1176680, 1821296, 2276620, 2353360, 2618113, 4553240, 5236226, 9106480, 10472452, 13090565, 20944904, 26181130, 41889808, 52362260, 104724520, 209449040]

約数ペア:

[(1, 209449040), (2, 104724520), (4, 52362260), (5, 41889808), (8, 26181130), (10, 20944904), (16, 13090565), (20, 10472452), (23, 9106480), (40, 5236226), (46, 4553240), (80, 2618113), (89, 2353360), (92, 2276620), (115, 1821296), (178, 1176680), (184, 1138310), (230, 910648), (356, 588340), (368, 569155), (445, 470672), (460, 455324), (712, 294170), (890, 235336), (920, 227662), (1279, 163760), (1424, 147085), (1780, 117668), (1840, 113831), (2047, 102320), (2558, 81880), (3560, 58834), (4094, 51160), (5116, 40940), (6395, 32752), (7120, 29417), (8188, 25580), (10232, 20470), (10235, 20464), (12790, 16376)]