7937820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:256

約数の個数: 144

約数和(自身を含む): 27780480

約数和(自身を除く): 19842660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 30, 33, 36, 38, 44, 45, 55, 57, 60, 66, 76, 90, 95, 99, 110, 114, 132, 165, 171, 180, 190, 198, 209, 211, 220, 228, 285, 330, 342, 380, 396, 418, 422, 495, 570, 627, 633, 660, 684, 836, 844, 855, 990, 1045, 1055, 1140, 1254, 1266, 1710, 1881, 1899, 1980, 2090, 2110, 2321, 2508, 2532, 3135, 3165, 3420, 3762, 3798, 4009, 4180, 4220, 4642, 6270, 6330, 6963, 7524, 7596, 8018, 9284, 9405, 9495, 11605, 12027, 12540, 12660, 13926, 16036, 18810, 18990, 20045, 20889, 23210, 24054, 27852, 34815, 36081, 37620, 37980, 40090, 41778, 44099, 46420, 48108, 60135, 69630, 72162, 80180, 83556, 88198, 104445, 120270, 132297, 139260, 144324, 176396, 180405, 208890, 220495, 240540, 264594, 360810, 396891, 417780, 440990, 529188, 661485, 721620, 793782, 881980, 1322970, 1587564, 1984455, 2645940, 3968910, 7937820]

約数ペア:

[(1, 7937820), (2, 3968910), (3, 2645940), (4, 1984455), (5, 1587564), (6, 1322970), (9, 881980), (10, 793782), (11, 721620), (12, 661485), (15, 529188), (18, 440990), (19, 417780), (20, 396891), (22, 360810), (30, 264594), (33, 240540), (36, 220495), (38, 208890), (44, 180405), (45, 176396), (55, 144324), (57, 139260), (60, 132297), (66, 120270), (76, 104445), (90, 88198), (95, 83556), (99, 80180), (110, 72162), (114, 69630), (132, 60135), (165, 48108), (171, 46420), (180, 44099), (190, 41778), (198, 40090), (209, 37980), (211, 37620), (220, 36081), (228, 34815), (285, 27852), (330, 24054), (342, 23210), (380, 20889), (396, 20045), (418, 18990), (422, 18810), (495, 16036), (570, 13926), (627, 12660), (633, 12540), (660, 12027), (684, 11605), (836, 9495), (844, 9405), (855, 9284), (990, 8018), (1045, 7596), (1055, 7524), (1140, 6963), (1254, 6330), (1266, 6270), (1710, 4642), (1881, 4220), (1899, 4180), (1980, 4009), (2090, 3798), (2110, 3762), (2321, 3420), (2508, 3165), (2532, 3135)]