18508140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:456

約数の個数: 144

約数和(自身を含む): 66061632

約数和(自身を除く): 47553492

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 74, 84, 90, 105, 111, 126, 140, 148, 180, 185, 210, 222, 252, 259, 315, 333, 370, 397, 420, 444, 518, 555, 630, 666, 740, 777, 794, 1036, 1110, 1191, 1260, 1295, 1332, 1554, 1588, 1665, 1985, 2220, 2331, 2382, 2590, 2779, 3108, 3330, 3573, 3885, 3970, 4662, 4764, 5180, 5558, 5955, 6660, 7146, 7770, 7940, 8337, 9324, 11116, 11655, 11910, 13895, 14292, 14689, 15540, 16674, 17865, 23310, 23820, 25011, 27790, 29378, 33348, 35730, 41685, 44067, 46620, 50022, 55580, 58756, 71460, 73445, 83370, 88134, 100044, 102823, 125055, 132201, 146890, 166740, 176268, 205646, 220335, 250110, 264402, 293780, 308469, 411292, 440670, 500220, 514115, 528804, 616938, 661005, 881340, 925407, 1028230, 1233876, 1322010, 1542345, 1850814, 2056460, 2644020, 3084690, 3701628, 4627035, 6169380, 9254070, 18508140]

約数ペア:

[(1, 18508140), (2, 9254070), (3, 6169380), (4, 4627035), (5, 3701628), (6, 3084690), (7, 2644020), (9, 2056460), (10, 1850814), (12, 1542345), (14, 1322010), (15, 1233876), (18, 1028230), (20, 925407), (21, 881340), (28, 661005), (30, 616938), (35, 528804), (36, 514115), (37, 500220), (42, 440670), (45, 411292), (60, 308469), (63, 293780), (70, 264402), (74, 250110), (84, 220335), (90, 205646), (105, 176268), (111, 166740), (126, 146890), (140, 132201), (148, 125055), (180, 102823), (185, 100044), (210, 88134), (222, 83370), (252, 73445), (259, 71460), (315, 58756), (333, 55580), (370, 50022), (397, 46620), (420, 44067), (444, 41685), (518, 35730), (555, 33348), (630, 29378), (666, 27790), (740, 25011), (777, 23820), (794, 23310), (1036, 17865), (1110, 16674), (1191, 15540), (1260, 14689), (1295, 14292), (1332, 13895), (1554, 11910), (1588, 11655), (1665, 11116), (1985, 9324), (2220, 8337), (2331, 7940), (2382, 7770), (2590, 7146), (2779, 6660), (3108, 5955), (3330, 5558), (3573, 5180), (3885, 4764), (3970, 4662)]