18640680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{953}}^1$

素因数の和:1130

約数の個数: 64

約数和(自身を含む): 56324160

約数和(自身を除く): 37683480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 953, 978, 1304, 1630, 1906, 1956, 2445, 2859, 3260, 3812, 3912, 4765, 4890, 5718, 6520, 7624, 9530, 9780, 11436, 14295, 19060, 19560, 22872, 28590, 38120, 57180, 114360, 155339, 310678, 466017, 621356, 776695, 932034, 1242712, 1553390, 1864068, 2330085, 3106780, 3728136, 4660170, 6213560, 9320340, 18640680]

約数ペア:

[(1, 18640680), (2, 9320340), (3, 6213560), (4, 4660170), (5, 3728136), (6, 3106780), (8, 2330085), (10, 1864068), (12, 1553390), (15, 1242712), (20, 932034), (24, 776695), (30, 621356), (40, 466017), (60, 310678), (120, 155339), (163, 114360), (326, 57180), (489, 38120), (652, 28590), (815, 22872), (953, 19560), (978, 19060), (1304, 14295), (1630, 11436), (1906, 9780), (1956, 9530), (2445, 7624), (2859, 6520), (3260, 5718), (3812, 4890), (3912, 4765)]