81381060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:250

約数の個数: 144

約数和(自身を含む): 256838400

約数和(自身を除く): 175457340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 79, 90, 97, 118, 158, 177, 180, 194, 236, 237, 291, 295, 316, 354, 388, 395, 474, 485, 531, 582, 590, 708, 711, 790, 873, 885, 948, 970, 1062, 1164, 1180, 1185, 1422, 1455, 1580, 1746, 1770, 1940, 2124, 2370, 2655, 2844, 2910, 3492, 3540, 3555, 4365, 4661, 4740, 5310, 5723, 5820, 7110, 7663, 8730, 9322, 10620, 11446, 13983, 14220, 15326, 17169, 17460, 18644, 22892, 22989, 23305, 27966, 28615, 30652, 34338, 38315, 41949, 45978, 46610, 51507, 55932, 57230, 68676, 68967, 69915, 76630, 83898, 85845, 91956, 93220, 103014, 114460, 114945, 137934, 139830, 153260, 167796, 171690, 206028, 209745, 229890, 257535, 275868, 279660, 343380, 344835, 419490, 452117, 459780, 515070, 689670, 838980, 904234, 1030140, 1356351, 1379340, 1808468, 2260585, 2712702, 4069053, 4521170, 5425404, 6781755, 8138106, 9042340, 13563510, 16276212, 20345265, 27127020, 40690530, 81381060]

約数ペア:

[(1, 81381060), (2, 40690530), (3, 27127020), (4, 20345265), (5, 16276212), (6, 13563510), (9, 9042340), (10, 8138106), (12, 6781755), (15, 5425404), (18, 4521170), (20, 4069053), (30, 2712702), (36, 2260585), (45, 1808468), (59, 1379340), (60, 1356351), (79, 1030140), (90, 904234), (97, 838980), (118, 689670), (158, 515070), (177, 459780), (180, 452117), (194, 419490), (236, 344835), (237, 343380), (291, 279660), (295, 275868), (316, 257535), (354, 229890), (388, 209745), (395, 206028), (474, 171690), (485, 167796), (531, 153260), (582, 139830), (590, 137934), (708, 114945), (711, 114460), (790, 103014), (873, 93220), (885, 91956), (948, 85845), (970, 83898), (1062, 76630), (1164, 69915), (1180, 68967), (1185, 68676), (1422, 57230), (1455, 55932), (1580, 51507), (1746, 46610), (1770, 45978), (1940, 41949), (2124, 38315), (2370, 34338), (2655, 30652), (2844, 28615), (2910, 27966), (3492, 23305), (3540, 22989), (3555, 22892), (4365, 18644), (4661, 17460), (4740, 17169), (5310, 15326), (5723, 14220), (5820, 13983), (7110, 11446), (7663, 10620), (8730, 9322)]