20198520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2953}}^1$

素因数の和:2989

約数の個数: 96

約数和(自身を含む): 69123600

約数和(自身を除く): 48925080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2953, 3420, 5906, 6840, 8859, 11812, 14765, 17718, 23624, 26577, 29530, 35436, 44295, 53154, 56107, 59060, 70872, 88590, 106308, 112214, 118120, 132885, 168321, 177180, 212616, 224428, 265770, 280535, 336642, 354360, 448856, 504963, 531540, 561070, 673284, 841605, 1009926, 1063080, 1122140, 1346568, 1683210, 2019852, 2244280, 2524815, 3366420, 4039704, 5049630, 6732840, 10099260, 20198520]

約数ペア:

[(1, 20198520), (2, 10099260), (3, 6732840), (4, 5049630), (5, 4039704), (6, 3366420), (8, 2524815), (9, 2244280), (10, 2019852), (12, 1683210), (15, 1346568), (18, 1122140), (19, 1063080), (20, 1009926), (24, 841605), (30, 673284), (36, 561070), (38, 531540), (40, 504963), (45, 448856), (57, 354360), (60, 336642), (72, 280535), (76, 265770), (90, 224428), (95, 212616), (114, 177180), (120, 168321), (152, 132885), (171, 118120), (180, 112214), (190, 106308), (228, 88590), (285, 70872), (342, 59060), (360, 56107), (380, 53154), (456, 44295), (570, 35436), (684, 29530), (760, 26577), (855, 23624), (1140, 17718), (1368, 14765), (1710, 11812), (2280, 8859), (2953, 6840), (3420, 5906)]