209052405

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 399499776

約数和(自身を除く): 190447371

約数列:

[1, 3, 5, 9, 15, 23, 37, 45, 53, 69, 103, 111, 115, 159, 185, 207, 265, 309, 333, 345, 477, 515, 555, 795, 851, 927, 1035, 1219, 1545, 1665, 1961, 2369, 2385, 2553, 3657, 3811, 4255, 4635, 5459, 5883, 6095, 7107, 7659, 9805, 10971, 11433, 11845, 12765, 16377, 17649, 18285, 19055, 21321, 27295, 29415, 34299, 35535, 38295, 45103, 49131, 54855, 57165, 81885, 87653, 88245, 106605, 125557, 135309, 171495, 201983, 225515, 245655, 262959, 376671, 405927, 438265, 605949, 627785, 676545, 788877, 1009915, 1130013, 1314795, 1817847, 1883355, 2029635, 3029745, 3944385, 4645609, 5650065, 9089235, 13936827, 23228045, 41810481, 69684135, 209052405]

約数ペア:

[(1, 209052405), (3, 69684135), (5, 41810481), (9, 23228045), (15, 13936827), (23, 9089235), (37, 5650065), (45, 4645609), (53, 3944385), (69, 3029745), (103, 2029635), (111, 1883355), (115, 1817847), (159, 1314795), (185, 1130013), (207, 1009915), (265, 788877), (309, 676545), (333, 627785), (345, 605949), (477, 438265), (515, 405927), (555, 376671), (795, 262959), (851, 245655), (927, 225515), (1035, 201983), (1219, 171495), (1545, 135309), (1665, 125557), (1961, 106605), (2369, 88245), (2385, 87653), (2553, 81885), (3657, 57165), (3811, 54855), (4255, 49131), (4635, 45103), (5459, 38295), (5883, 35535), (6095, 34299), (7107, 29415), (7659, 27295), (9805, 21321), (10971, 19055), (11433, 18285), (11845, 17649), (12765, 16377)]