18746420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 144

約数和(自身を含む): 52399872

約数和(自身を除く): 33653452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 47, 49, 55, 70, 74, 77, 94, 98, 110, 140, 148, 154, 185, 188, 196, 220, 235, 245, 259, 308, 329, 370, 385, 407, 470, 490, 517, 518, 539, 658, 740, 770, 814, 940, 980, 1034, 1036, 1078, 1295, 1316, 1540, 1628, 1645, 1739, 1813, 2035, 2068, 2156, 2303, 2585, 2590, 2695, 2849, 3290, 3478, 3619, 3626, 4070, 4606, 5170, 5180, 5390, 5698, 6580, 6956, 7238, 7252, 8140, 8695, 9065, 9212, 10340, 10780, 11396, 11515, 12173, 14245, 14476, 17390, 18095, 18130, 19129, 19943, 23030, 24346, 25333, 28490, 34780, 36190, 36260, 38258, 39886, 46060, 48692, 50666, 56980, 60865, 72380, 76516, 79772, 85211, 95645, 99715, 101332, 121730, 126665, 133903, 170422, 191290, 199430, 243460, 253330, 267806, 340844, 382580, 398860, 426055, 506660, 535612, 669515, 852110, 937321, 1339030, 1704220, 1874642, 2678060, 3749284, 4686605, 9373210, 18746420]

約数ペア:

[(1, 18746420), (2, 9373210), (4, 4686605), (5, 3749284), (7, 2678060), (10, 1874642), (11, 1704220), (14, 1339030), (20, 937321), (22, 852110), (28, 669515), (35, 535612), (37, 506660), (44, 426055), (47, 398860), (49, 382580), (55, 340844), (70, 267806), (74, 253330), (77, 243460), (94, 199430), (98, 191290), (110, 170422), (140, 133903), (148, 126665), (154, 121730), (185, 101332), (188, 99715), (196, 95645), (220, 85211), (235, 79772), (245, 76516), (259, 72380), (308, 60865), (329, 56980), (370, 50666), (385, 48692), (407, 46060), (470, 39886), (490, 38258), (517, 36260), (518, 36190), (539, 34780), (658, 28490), (740, 25333), (770, 24346), (814, 23030), (940, 19943), (980, 19129), (1034, 18130), (1036, 18095), (1078, 17390), (1295, 14476), (1316, 14245), (1540, 12173), (1628, 11515), (1645, 11396), (1739, 10780), (1813, 10340), (2035, 9212), (2068, 9065), (2156, 8695), (2303, 8140), (2585, 7252), (2590, 7238), (2695, 6956), (2849, 6580), (3290, 5698), (3478, 5390), (3619, 5180), (3626, 5170), (4070, 4606)]