20049480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 192

約数和(自身を含む): 73120320

約数和(自身を除く): 53070840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 61, 66, 72, 83, 88, 90, 99, 110, 120, 122, 132, 165, 166, 180, 183, 198, 220, 244, 249, 264, 305, 330, 332, 360, 366, 396, 415, 440, 488, 495, 498, 549, 610, 660, 664, 671, 732, 747, 792, 830, 913, 915, 990, 996, 1098, 1220, 1245, 1320, 1342, 1464, 1494, 1660, 1826, 1830, 1980, 1992, 2013, 2196, 2440, 2490, 2684, 2739, 2745, 2988, 3320, 3355, 3652, 3660, 3735, 3960, 4026, 4392, 4565, 4980, 5063, 5368, 5478, 5490, 5976, 6039, 6710, 7304, 7320, 7470, 8052, 8217, 9130, 9960, 10065, 10126, 10956, 10980, 12078, 13420, 13695, 14940, 15189, 16104, 16434, 18260, 20130, 20252, 21912, 21960, 24156, 25315, 26840, 27390, 29880, 30195, 30378, 32868, 36520, 40260, 40504, 41085, 45567, 48312, 50630, 54780, 55693, 60390, 60756, 65736, 75945, 80520, 82170, 91134, 101260, 109560, 111386, 120780, 121512, 151890, 164340, 167079, 182268, 202520, 222772, 227835, 241560, 278465, 303780, 328680, 334158, 364536, 445544, 455670, 501237, 556930, 607560, 668316, 835395, 911340, 1002474, 1113860, 1336632, 1670790, 1822680, 2004948, 2227720, 2506185, 3341580, 4009896, 5012370, 6683160, 10024740, 20049480]

約数ペア:

[(1, 20049480), (2, 10024740), (3, 6683160), (4, 5012370), (5, 4009896), (6, 3341580), (8, 2506185), (9, 2227720), (10, 2004948), (11, 1822680), (12, 1670790), (15, 1336632), (18, 1113860), (20, 1002474), (22, 911340), (24, 835395), (30, 668316), (33, 607560), (36, 556930), (40, 501237), (44, 455670), (45, 445544), (55, 364536), (60, 334158), (61, 328680), (66, 303780), (72, 278465), (83, 241560), (88, 227835), (90, 222772), (99, 202520), (110, 182268), (120, 167079), (122, 164340), (132, 151890), (165, 121512), (166, 120780), (180, 111386), (183, 109560), (198, 101260), (220, 91134), (244, 82170), (249, 80520), (264, 75945), (305, 65736), (330, 60756), (332, 60390), (360, 55693), (366, 54780), (396, 50630), (415, 48312), (440, 45567), (488, 41085), (495, 40504), (498, 40260), (549, 36520), (610, 32868), (660, 30378), (664, 30195), (671, 29880), (732, 27390), (747, 26840), (792, 25315), (830, 24156), (913, 21960), (915, 21912), (990, 20252), (996, 20130), (1098, 18260), (1220, 16434), (1245, 16104), (1320, 15189), (1342, 14940), (1464, 13695), (1494, 13420), (1660, 12078), (1826, 10980), (1830, 10956), (1980, 10126), (1992, 10065), (2013, 9960), (2196, 9130), (2440, 8217), (2490, 8052), (2684, 7470), (2739, 7320), (2745, 7304), (2988, 6710), (3320, 6039), (3355, 5976), (3652, 5490), (3660, 5478), (3735, 5368), (3960, 5063), (4026, 4980), (4392, 4565)]