641285344

素因数分解:

$2^5\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:301

約数の個数: 144

約数和(自身を含む): 1544417280

約数和(自身を除く): 903131936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 79, 98, 112, 124, 158, 167, 196, 217, 224, 248, 316, 334, 392, 434, 496, 553, 632, 668, 784, 868, 992, 1106, 1169, 1264, 1336, 1519, 1568, 1736, 2212, 2338, 2449, 2528, 2672, 3038, 3472, 3871, 4424, 4676, 4898, 5177, 5344, 6076, 6944, 7742, 8183, 8848, 9352, 9796, 10354, 12152, 13193, 15484, 16366, 17143, 17696, 18704, 19592, 20708, 24304, 26386, 30968, 32732, 34286, 36239, 37408, 39184, 41416, 48608, 52772, 61936, 65464, 68572, 72478, 78368, 82832, 92351, 105544, 120001, 123872, 130928, 137144, 144956, 165664, 184702, 211088, 240002, 253673, 261856, 274288, 289912, 369404, 408983, 422176, 480004, 507346, 548576, 579824, 646457, 738808, 817966, 960008, 1014692, 1159648, 1292914, 1477616, 1635932, 1920016, 2029384, 2585828, 2862881, 2955232, 3271864, 3840032, 4058768, 5171656, 5725762, 6543728, 8117536, 10343312, 11451524, 13087456, 20040167, 20686624, 22903048, 40080334, 45806096, 80160668, 91612192, 160321336, 320642672, 641285344]

約数ペア:

[(1, 641285344), (2, 320642672), (4, 160321336), (7, 91612192), (8, 80160668), (14, 45806096), (16, 40080334), (28, 22903048), (31, 20686624), (32, 20040167), (49, 13087456), (56, 11451524), (62, 10343312), (79, 8117536), (98, 6543728), (112, 5725762), (124, 5171656), (158, 4058768), (167, 3840032), (196, 3271864), (217, 2955232), (224, 2862881), (248, 2585828), (316, 2029384), (334, 1920016), (392, 1635932), (434, 1477616), (496, 1292914), (553, 1159648), (632, 1014692), (668, 960008), (784, 817966), (868, 738808), (992, 646457), (1106, 579824), (1169, 548576), (1264, 507346), (1336, 480004), (1519, 422176), (1568, 408983), (1736, 369404), (2212, 289912), (2338, 274288), (2449, 261856), (2528, 253673), (2672, 240002), (3038, 211088), (3472, 184702), (3871, 165664), (4424, 144956), (4676, 137144), (4898, 130928), (5177, 123872), (5344, 120001), (6076, 105544), (6944, 92351), (7742, 82832), (8183, 78368), (8848, 72478), (9352, 68572), (9796, 65464), (10354, 61936), (12152, 52772), (13193, 48608), (15484, 41416), (16366, 39184), (17143, 37408), (17696, 36239), (18704, 34286), (19592, 32732), (20708, 30968), (24304, 26386)]