20436420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40527420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 59, 60, 69, 92, 115, 118, 138, 177, 230, 236, 251, 276, 295, 345, 354, 460, 502, 590, 690, 708, 753, 885, 1004, 1180, 1255, 1357, 1380, 1506, 1770, 2510, 2714, 3012, 3540, 3765, 4071, 5020, 5428, 5773, 6785, 7530, 8142, 11546, 13570, 14809, 15060, 16284, 17319, 20355, 23092, 27140, 28865, 29618, 34638, 40710, 44427, 57730, 59236, 69276, 74045, 81420, 86595, 88854, 115460, 148090, 173190, 177708, 222135, 296180, 340607, 346380, 444270, 681214, 888540, 1021821, 1362428, 1703035, 2043642, 3406070, 4087284, 5109105, 6812140, 10218210, 20436420]

約数ペア:

[(1, 20436420), (2, 10218210), (3, 6812140), (4, 5109105), (5, 4087284), (6, 3406070), (10, 2043642), (12, 1703035), (15, 1362428), (20, 1021821), (23, 888540), (30, 681214), (46, 444270), (59, 346380), (60, 340607), (69, 296180), (92, 222135), (115, 177708), (118, 173190), (138, 148090), (177, 115460), (230, 88854), (236, 86595), (251, 81420), (276, 74045), (295, 69276), (345, 59236), (354, 57730), (460, 44427), (502, 40710), (590, 34638), (690, 29618), (708, 28865), (753, 27140), (885, 23092), (1004, 20355), (1180, 17319), (1255, 16284), (1357, 15060), (1380, 14809), (1506, 13570), (1770, 11546), (2510, 8142), (2714, 7530), (3012, 6785), (3540, 5773), (3765, 5428), (4071, 5020)]