19782420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:142

約数の個数: 192

約数和(自身を含む): 69457920

約数和(自身を除く): 49675500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 37, 38, 42, 57, 60, 67, 70, 74, 76, 84, 95, 105, 111, 114, 133, 134, 140, 148, 185, 190, 201, 210, 222, 228, 259, 266, 268, 285, 335, 370, 380, 399, 402, 420, 444, 469, 518, 532, 555, 570, 665, 670, 703, 740, 777, 798, 804, 938, 1005, 1036, 1110, 1140, 1273, 1295, 1330, 1340, 1406, 1407, 1554, 1596, 1876, 1995, 2010, 2109, 2220, 2345, 2479, 2546, 2590, 2660, 2812, 2814, 3108, 3515, 3819, 3885, 3990, 4020, 4218, 4690, 4921, 4958, 5092, 5180, 5628, 6365, 7030, 7035, 7437, 7638, 7770, 7980, 8436, 8911, 9380, 9842, 9916, 10545, 12395, 12730, 14060, 14070, 14763, 14874, 15276, 15540, 17353, 17822, 19095, 19684, 21090, 24605, 24790, 25460, 26733, 28140, 29526, 29748, 34706, 35644, 37185, 38190, 42180, 44555, 47101, 49210, 49580, 52059, 53466, 59052, 69412, 73815, 74370, 76380, 86765, 89110, 94202, 98420, 104118, 106932, 133665, 141303, 147630, 148740, 173530, 178220, 188404, 208236, 235505, 260295, 267330, 282606, 295260, 329707, 347060, 471010, 520590, 534660, 565212, 659414, 706515, 942020, 989121, 1041180, 1318828, 1413030, 1648535, 1978242, 2826060, 3297070, 3956484, 4945605, 6594140, 9891210, 19782420]

約数ペア:

[(1, 19782420), (2, 9891210), (3, 6594140), (4, 4945605), (5, 3956484), (6, 3297070), (7, 2826060), (10, 1978242), (12, 1648535), (14, 1413030), (15, 1318828), (19, 1041180), (20, 989121), (21, 942020), (28, 706515), (30, 659414), (35, 565212), (37, 534660), (38, 520590), (42, 471010), (57, 347060), (60, 329707), (67, 295260), (70, 282606), (74, 267330), (76, 260295), (84, 235505), (95, 208236), (105, 188404), (111, 178220), (114, 173530), (133, 148740), (134, 147630), (140, 141303), (148, 133665), (185, 106932), (190, 104118), (201, 98420), (210, 94202), (222, 89110), (228, 86765), (259, 76380), (266, 74370), (268, 73815), (285, 69412), (335, 59052), (370, 53466), (380, 52059), (399, 49580), (402, 49210), (420, 47101), (444, 44555), (469, 42180), (518, 38190), (532, 37185), (555, 35644), (570, 34706), (665, 29748), (670, 29526), (703, 28140), (740, 26733), (777, 25460), (798, 24790), (804, 24605), (938, 21090), (1005, 19684), (1036, 19095), (1110, 17822), (1140, 17353), (1273, 15540), (1295, 15276), (1330, 14874), (1340, 14763), (1406, 14070), (1407, 14060), (1554, 12730), (1596, 12395), (1876, 10545), (1995, 9916), (2010, 9842), (2109, 9380), (2220, 8911), (2345, 8436), (2479, 7980), (2546, 7770), (2590, 7638), (2660, 7437), (2812, 7035), (2814, 7030), (3108, 6365), (3515, 5628), (3819, 5180), (3885, 5092), (3990, 4958), (4020, 4921), (4218, 4690)]