20378160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:144

約数の個数: 240

約数和(自身を含む): 77995008

約数和(自身を除く): 57616848

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 48, 55, 60, 62, 66, 72, 80, 83, 88, 90, 93, 99, 110, 120, 124, 132, 144, 155, 165, 166, 176, 180, 186, 198, 220, 240, 248, 249, 264, 279, 310, 330, 332, 341, 360, 372, 396, 415, 440, 465, 495, 496, 498, 528, 558, 620, 660, 664, 682, 720, 744, 747, 792, 830, 880, 913, 930, 990, 996, 1023, 1116, 1240, 1245, 1320, 1328, 1364, 1395, 1488, 1494, 1584, 1660, 1705, 1826, 1860, 1980, 1992, 2046, 2232, 2480, 2490, 2573, 2640, 2728, 2739, 2790, 2988, 3069, 3320, 3410, 3652, 3720, 3735, 3960, 3984, 4092, 4464, 4565, 4980, 5115, 5146, 5456, 5478, 5580, 5976, 6138, 6640, 6820, 7304, 7440, 7470, 7719, 7920, 8184, 8217, 9130, 9960, 10230, 10292, 10956, 11160, 11952, 12276, 12865, 13640, 13695, 14608, 14940, 15345, 15438, 16368, 16434, 18260, 19920, 20460, 20584, 21912, 22320, 23157, 24552, 25730, 27280, 27390, 28303, 29880, 30690, 30876, 32868, 36520, 38595, 40920, 41085, 41168, 43824, 46314, 49104, 51460, 54780, 56606, 59760, 61380, 61752, 65736, 73040, 77190, 81840, 82170, 84909, 92628, 102920, 109560, 113212, 115785, 122760, 123504, 131472, 141515, 154380, 164340, 169818, 185256, 205840, 219120, 226424, 231570, 245520, 254727, 283030, 308760, 328680, 339636, 370512, 424545, 452848, 463140, 509454, 566060, 617520, 657360, 679272, 849090, 926280, 1018908, 1132120, 1273635, 1358544, 1698180, 1852560, 2037816, 2264240, 2547270, 3396360, 4075632, 5094540, 6792720, 10189080, 20378160]

約数ペア:

[(1, 20378160), (2, 10189080), (3, 6792720), (4, 5094540), (5, 4075632), (6, 3396360), (8, 2547270), (9, 2264240), (10, 2037816), (11, 1852560), (12, 1698180), (15, 1358544), (16, 1273635), (18, 1132120), (20, 1018908), (22, 926280), (24, 849090), (30, 679272), (31, 657360), (33, 617520), (36, 566060), (40, 509454), (44, 463140), (45, 452848), (48, 424545), (55, 370512), (60, 339636), (62, 328680), (66, 308760), (72, 283030), (80, 254727), (83, 245520), (88, 231570), (90, 226424), (93, 219120), (99, 205840), (110, 185256), (120, 169818), (124, 164340), (132, 154380), (144, 141515), (155, 131472), (165, 123504), (166, 122760), (176, 115785), (180, 113212), (186, 109560), (198, 102920), (220, 92628), (240, 84909), (248, 82170), (249, 81840), (264, 77190), (279, 73040), (310, 65736), (330, 61752), (332, 61380), (341, 59760), (360, 56606), (372, 54780), (396, 51460), (415, 49104), (440, 46314), (465, 43824), (495, 41168), (496, 41085), (498, 40920), (528, 38595), (558, 36520), (620, 32868), (660, 30876), (664, 30690), (682, 29880), (720, 28303), (744, 27390), (747, 27280), (792, 25730), (830, 24552), (880, 23157), (913, 22320), (930, 21912), (990, 20584), (996, 20460), (1023, 19920), (1116, 18260), (1240, 16434), (1245, 16368), (1320, 15438), (1328, 15345), (1364, 14940), (1395, 14608), (1488, 13695), (1494, 13640), (1584, 12865), (1660, 12276), (1705, 11952), (1826, 11160), (1860, 10956), (1980, 10292), (1992, 10230), (2046, 9960), (2232, 9130), (2480, 8217), (2490, 8184), (2573, 7920), (2640, 7719), (2728, 7470), (2739, 7440), (2790, 7304), (2988, 6820), (3069, 6640), (3320, 6138), (3410, 5976), (3652, 5580), (3720, 5478), (3735, 5456), (3960, 5146), (3984, 5115), (4092, 4980), (4464, 4565)]