18627700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 33868940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 25, 26, 28, 35, 46, 50, 52, 65, 70, 89, 91, 92, 100, 115, 130, 140, 161, 175, 178, 182, 230, 260, 299, 322, 325, 350, 356, 364, 445, 455, 460, 575, 598, 623, 644, 650, 700, 805, 890, 910, 1150, 1157, 1196, 1246, 1300, 1495, 1610, 1780, 1820, 2047, 2093, 2225, 2275, 2300, 2314, 2492, 2990, 3115, 3220, 4025, 4094, 4186, 4450, 4550, 4628, 5785, 5980, 6230, 7475, 8050, 8099, 8188, 8372, 8900, 9100, 10235, 10465, 11570, 12460, 14329, 14950, 15575, 16100, 16198, 20470, 20930, 23140, 26611, 28658, 28925, 29900, 31150, 32396, 40495, 40940, 41860, 51175, 52325, 53222, 57316, 57850, 62300, 71645, 80990, 102350, 104650, 106444, 115700, 133055, 143290, 161980, 186277, 202475, 204700, 209300, 266110, 286580, 358225, 372554, 404950, 532220, 665275, 716450, 745108, 809900, 931385, 1330550, 1432900, 1862770, 2661100, 3725540, 4656925, 9313850, 18627700]

約数ペア:

[(1, 18627700), (2, 9313850), (4, 4656925), (5, 3725540), (7, 2661100), (10, 1862770), (13, 1432900), (14, 1330550), (20, 931385), (23, 809900), (25, 745108), (26, 716450), (28, 665275), (35, 532220), (46, 404950), (50, 372554), (52, 358225), (65, 286580), (70, 266110), (89, 209300), (91, 204700), (92, 202475), (100, 186277), (115, 161980), (130, 143290), (140, 133055), (161, 115700), (175, 106444), (178, 104650), (182, 102350), (230, 80990), (260, 71645), (299, 62300), (322, 57850), (325, 57316), (350, 53222), (356, 52325), (364, 51175), (445, 41860), (455, 40940), (460, 40495), (575, 32396), (598, 31150), (623, 29900), (644, 28925), (650, 28658), (700, 26611), (805, 23140), (890, 20930), (910, 20470), (1150, 16198), (1157, 16100), (1196, 15575), (1246, 14950), (1300, 14329), (1495, 12460), (1610, 11570), (1780, 10465), (1820, 10235), (2047, 9100), (2093, 8900), (2225, 8372), (2275, 8188), (2300, 8099), (2314, 8050), (2492, 7475), (2990, 6230), (3115, 5980), (3220, 5785), (4025, 4628), (4094, 4550), (4186, 4450)]