278345480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:196

約数の個数: 192

約数和(自身を含む): 775656000

約数和(自身を除く): 497310520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 59, 70, 83, 98, 116, 118, 140, 145, 166, 196, 203, 232, 236, 245, 280, 290, 295, 332, 392, 406, 413, 415, 472, 490, 580, 581, 590, 664, 812, 826, 830, 980, 1015, 1160, 1162, 1180, 1421, 1624, 1652, 1660, 1711, 1960, 2030, 2065, 2324, 2360, 2407, 2842, 2891, 2905, 3304, 3320, 3422, 4060, 4067, 4130, 4648, 4814, 4897, 5684, 5782, 5810, 6844, 7105, 8120, 8134, 8260, 8555, 9628, 9794, 11368, 11564, 11620, 11977, 12035, 13688, 14210, 14455, 16268, 16520, 16849, 17110, 19256, 19588, 20335, 23128, 23240, 23954, 24070, 24485, 28420, 28910, 32536, 33698, 34220, 34279, 39176, 40670, 47908, 48140, 48970, 56840, 57820, 59885, 67396, 68440, 68558, 81340, 83839, 84245, 95816, 96280, 97940, 115640, 117943, 119770, 134792, 137116, 142013, 162680, 167678, 168490, 171395, 195880, 235886, 239540, 239953, 274232, 284026, 335356, 336980, 342790, 419195, 471772, 479080, 479906, 568052, 589715, 670712, 673960, 685580, 710065, 838390, 943544, 959812, 994091, 1136104, 1179430, 1199765, 1371160, 1420130, 1676780, 1919624, 1988182, 2358860, 2399530, 2840260, 3353560, 3976364, 4717720, 4799060, 4970455, 5680520, 6958637, 7952728, 9598120, 9940910, 13917274, 19881820, 27834548, 34793185, 39763640, 55669096, 69586370, 139172740, 278345480]

約数ペア:

[(1, 278345480), (2, 139172740), (4, 69586370), (5, 55669096), (7, 39763640), (8, 34793185), (10, 27834548), (14, 19881820), (20, 13917274), (28, 9940910), (29, 9598120), (35, 7952728), (40, 6958637), (49, 5680520), (56, 4970455), (58, 4799060), (59, 4717720), (70, 3976364), (83, 3353560), (98, 2840260), (116, 2399530), (118, 2358860), (140, 1988182), (145, 1919624), (166, 1676780), (196, 1420130), (203, 1371160), (232, 1199765), (236, 1179430), (245, 1136104), (280, 994091), (290, 959812), (295, 943544), (332, 838390), (392, 710065), (406, 685580), (413, 673960), (415, 670712), (472, 589715), (490, 568052), (580, 479906), (581, 479080), (590, 471772), (664, 419195), (812, 342790), (826, 336980), (830, 335356), (980, 284026), (1015, 274232), (1160, 239953), (1162, 239540), (1180, 235886), (1421, 195880), (1624, 171395), (1652, 168490), (1660, 167678), (1711, 162680), (1960, 142013), (2030, 137116), (2065, 134792), (2324, 119770), (2360, 117943), (2407, 115640), (2842, 97940), (2891, 96280), (2905, 95816), (3304, 84245), (3320, 83839), (3422, 81340), (4060, 68558), (4067, 68440), (4130, 67396), (4648, 59885), (4814, 57820), (4897, 56840), (5684, 48970), (5782, 48140), (5810, 47908), (6844, 40670), (7105, 39176), (8120, 34279), (8134, 34220), (8260, 33698), (8555, 32536), (9628, 28910), (9794, 28420), (11368, 24485), (11564, 24070), (11620, 23954), (11977, 23240), (12035, 23128), (13688, 20335), (14210, 19588), (14455, 19256), (16268, 17110), (16520, 16849)]