81111018880

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{32191}}^1$

素因数の和:32368

約数の個数: 128

約数和(自身を含む): 201743400960

約数和(自身を除く): 120632382080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 127, 128, 155, 160, 248, 254, 310, 320, 496, 508, 620, 635, 640, 992, 1016, 1240, 1270, 1984, 2032, 2480, 2540, 3937, 3968, 4064, 4960, 5080, 7874, 8128, 9920, 10160, 15748, 16256, 19685, 19840, 20320, 31496, 32191, 39370, 40640, 62992, 64382, 78740, 81280, 125984, 128764, 157480, 160955, 251968, 257528, 314960, 321910, 503936, 515056, 629920, 643820, 997921, 1030112, 1259840, 1287640, 1995842, 2060224, 2519680, 2575280, 3991684, 4088257, 4120448, 4989605, 5150560, 7983368, 8176514, 9979210, 10301120, 15966736, 16353028, 19958420, 20441285, 20602240, 31933472, 32706056, 39916840, 40882570, 63866944, 65412112, 79833680, 81765140, 126735967, 127733888, 130824224, 159667360, 163530280, 253471934, 261648448, 319334720, 327060560, 506943868, 523296896, 633679835, 638669440, 654121120, 1013887736, 1267359670, 1308242240, 2027775472, 2534719340, 2616484480, 4055550944, 5069438680, 8111101888, 10138877360, 16222203776, 20277754720, 40555509440, 81111018880]

約数ペア:

[(1, 81111018880), (2, 40555509440), (4, 20277754720), (5, 16222203776), (8, 10138877360), (10, 8111101888), (16, 5069438680), (20, 4055550944), (31, 2616484480), (32, 2534719340), (40, 2027775472), (62, 1308242240), (64, 1267359670), (80, 1013887736), (124, 654121120), (127, 638669440), (128, 633679835), (155, 523296896), (160, 506943868), (248, 327060560), (254, 319334720), (310, 261648448), (320, 253471934), (496, 163530280), (508, 159667360), (620, 130824224), (635, 127733888), (640, 126735967), (992, 81765140), (1016, 79833680), (1240, 65412112), (1270, 63866944), (1984, 40882570), (2032, 39916840), (2480, 32706056), (2540, 31933472), (3937, 20602240), (3968, 20441285), (4064, 19958420), (4960, 16353028), (5080, 15966736), (7874, 10301120), (8128, 9979210), (9920, 8176514), (10160, 7983368), (15748, 5150560), (16256, 4989605), (19685, 4120448), (19840, 4088257), (20320, 3991684), (31496, 2575280), (32191, 2519680), (39370, 2060224), (40640, 1995842), (62992, 1287640), (64382, 1259840), (78740, 1030112), (81280, 997921), (125984, 643820), (128764, 629920), (157480, 515056), (160955, 503936), (251968, 321910), (257528, 314960)]