18386775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:86

約数の個数: 144

約数和(自身を含む): 41783040

約数和(自身を除く): 23396265

約数列:

[1, 3, 5, 9, 11, 15, 17, 19, 23, 25, 33, 45, 51, 55, 57, 69, 75, 85, 95, 99, 115, 153, 165, 171, 187, 207, 209, 225, 253, 255, 275, 285, 323, 345, 391, 425, 437, 475, 495, 561, 575, 627, 759, 765, 825, 855, 935, 969, 1035, 1045, 1173, 1265, 1275, 1311, 1425, 1615, 1683, 1725, 1881, 1955, 2185, 2277, 2475, 2805, 2907, 3135, 3519, 3553, 3795, 3825, 3933, 4275, 4301, 4675, 4807, 4845, 5175, 5225, 5865, 6325, 6555, 7429, 8075, 8415, 9405, 9775, 10659, 10925, 11385, 12903, 14025, 14421, 14535, 15675, 17595, 17765, 18975, 19665, 21505, 22287, 24035, 24225, 29325, 31977, 32775, 37145, 38709, 42075, 43263, 47025, 53295, 56925, 64515, 66861, 72105, 72675, 81719, 87975, 88825, 98325, 107525, 111435, 120175, 159885, 185725, 193545, 216315, 245157, 266475, 322575, 334305, 360525, 408595, 557175, 735471, 799425, 967725, 1081575, 1225785, 1671525, 2042975, 3677355, 6128925, 18386775]

約数ペア:

[(1, 18386775), (3, 6128925), (5, 3677355), (9, 2042975), (11, 1671525), (15, 1225785), (17, 1081575), (19, 967725), (23, 799425), (25, 735471), (33, 557175), (45, 408595), (51, 360525), (55, 334305), (57, 322575), (69, 266475), (75, 245157), (85, 216315), (95, 193545), (99, 185725), (115, 159885), (153, 120175), (165, 111435), (171, 107525), (187, 98325), (207, 88825), (209, 87975), (225, 81719), (253, 72675), (255, 72105), (275, 66861), (285, 64515), (323, 56925), (345, 53295), (391, 47025), (425, 43263), (437, 42075), (475, 38709), (495, 37145), (561, 32775), (575, 31977), (627, 29325), (759, 24225), (765, 24035), (825, 22287), (855, 21505), (935, 19665), (969, 18975), (1035, 17765), (1045, 17595), (1173, 15675), (1265, 14535), (1275, 14421), (1311, 14025), (1425, 12903), (1615, 11385), (1683, 10925), (1725, 10659), (1881, 9775), (1955, 9405), (2185, 8415), (2277, 8075), (2475, 7429), (2805, 6555), (2907, 6325), (3135, 5865), (3519, 5225), (3553, 5175), (3795, 4845), (3825, 4807), (3933, 4675), (4275, 4301)]