20609640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6361}}^1$

素因数の和:6384

約数の個数: 80

約数和(自身を含む): 69282180

約数和(自身を除く): 48672540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6361, 12722, 19083, 25444, 31805, 38166, 50888, 57249, 63610, 76332, 95415, 114498, 127220, 152664, 171747, 190830, 228996, 254440, 286245, 343494, 381660, 457992, 515241, 572490, 686988, 763320, 858735, 1030482, 1144980, 1373976, 1717470, 2060964, 2289960, 2576205, 3434940, 4121928, 5152410, 6869880, 10304820, 20609640]

約数ペア:

[(1, 20609640), (2, 10304820), (3, 6869880), (4, 5152410), (5, 4121928), (6, 3434940), (8, 2576205), (9, 2289960), (10, 2060964), (12, 1717470), (15, 1373976), (18, 1144980), (20, 1030482), (24, 858735), (27, 763320), (30, 686988), (36, 572490), (40, 515241), (45, 457992), (54, 381660), (60, 343494), (72, 286245), (81, 254440), (90, 228996), (108, 190830), (120, 171747), (135, 152664), (162, 127220), (180, 114498), (216, 95415), (270, 76332), (324, 63610), (360, 57249), (405, 50888), (540, 38166), (648, 31805), (810, 25444), (1080, 19083), (1620, 12722), (3240, 6361)]