51557220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2042

約数の個数: 144

約数和(自身を含む): 183822912

約数和(自身を除く): 132265692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 33, 36, 39, 44, 45, 52, 55, 60, 65, 66, 78, 90, 99, 110, 117, 130, 132, 143, 156, 165, 180, 195, 198, 220, 234, 260, 286, 330, 390, 396, 429, 468, 495, 572, 585, 660, 715, 780, 858, 990, 1170, 1287, 1430, 1716, 1980, 2003, 2145, 2340, 2574, 2860, 4006, 4290, 5148, 6009, 6435, 8012, 8580, 10015, 12018, 12870, 18027, 20030, 22033, 24036, 25740, 26039, 30045, 36054, 40060, 44066, 52078, 60090, 66099, 72108, 78117, 88132, 90135, 104156, 110165, 120180, 130195, 132198, 156234, 180270, 198297, 220330, 234351, 260390, 264396, 286429, 312468, 330495, 360540, 390585, 396594, 440660, 468702, 520780, 572858, 660990, 781170, 793188, 859287, 937404, 991485, 1145716, 1171755, 1321980, 1432145, 1562340, 1718574, 1982970, 2343510, 2577861, 2864290, 3437148, 3965940, 4296435, 4687020, 5155722, 5728580, 8592870, 10311444, 12889305, 17185740, 25778610, 51557220]

約数ペア:

[(1, 51557220), (2, 25778610), (3, 17185740), (4, 12889305), (5, 10311444), (6, 8592870), (9, 5728580), (10, 5155722), (11, 4687020), (12, 4296435), (13, 3965940), (15, 3437148), (18, 2864290), (20, 2577861), (22, 2343510), (26, 1982970), (30, 1718574), (33, 1562340), (36, 1432145), (39, 1321980), (44, 1171755), (45, 1145716), (52, 991485), (55, 937404), (60, 859287), (65, 793188), (66, 781170), (78, 660990), (90, 572858), (99, 520780), (110, 468702), (117, 440660), (130, 396594), (132, 390585), (143, 360540), (156, 330495), (165, 312468), (180, 286429), (195, 264396), (198, 260390), (220, 234351), (234, 220330), (260, 198297), (286, 180270), (330, 156234), (390, 132198), (396, 130195), (429, 120180), (468, 110165), (495, 104156), (572, 90135), (585, 88132), (660, 78117), (715, 72108), (780, 66099), (858, 60090), (990, 52078), (1170, 44066), (1287, 40060), (1430, 36054), (1716, 30045), (1980, 26039), (2003, 25740), (2145, 24036), (2340, 22033), (2574, 20030), (2860, 18027), (4006, 12870), (4290, 12018), (5148, 10015), (6009, 8580), (6435, 8012)]