18129520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 26867600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 59, 80, 92, 115, 118, 167, 184, 230, 236, 295, 334, 368, 460, 472, 590, 668, 835, 920, 944, 1180, 1336, 1357, 1670, 1840, 2360, 2672, 2714, 3340, 3841, 4720, 5428, 6680, 6785, 7682, 9853, 10856, 13360, 13570, 15364, 19205, 19706, 21712, 27140, 30728, 38410, 39412, 49265, 54280, 61456, 76820, 78824, 98530, 108560, 153640, 157648, 197060, 226619, 307280, 394120, 453238, 788240, 906476, 1133095, 1812952, 2266190, 3625904, 4532380, 9064760, 18129520]

約数ペア:

[(1, 18129520), (2, 9064760), (4, 4532380), (5, 3625904), (8, 2266190), (10, 1812952), (16, 1133095), (20, 906476), (23, 788240), (40, 453238), (46, 394120), (59, 307280), (80, 226619), (92, 197060), (115, 157648), (118, 153640), (167, 108560), (184, 98530), (230, 78824), (236, 76820), (295, 61456), (334, 54280), (368, 49265), (460, 39412), (472, 38410), (590, 30728), (668, 27140), (835, 21712), (920, 19706), (944, 19205), (1180, 15364), (1336, 13570), (1357, 13360), (1670, 10856), (1840, 9853), (2360, 7682), (2672, 6785), (2714, 6680), (3340, 5428), (3841, 4720)]