656290460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:212

約数の個数: 192

約数和(自身を含む): 1722556416

約数和(自身を除く): 1066265956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 37, 61, 62, 67, 70, 74, 122, 124, 134, 140, 148, 155, 185, 217, 244, 259, 268, 305, 310, 335, 370, 427, 434, 469, 518, 610, 620, 670, 740, 854, 868, 938, 1036, 1085, 1147, 1220, 1295, 1340, 1708, 1876, 1891, 2077, 2135, 2170, 2257, 2294, 2345, 2479, 2590, 3782, 4087, 4154, 4270, 4340, 4514, 4588, 4690, 4958, 5180, 5735, 7564, 8029, 8174, 8308, 8540, 9028, 9380, 9455, 9916, 10385, 11285, 11470, 12395, 13237, 14539, 15799, 16058, 16348, 17353, 18910, 20435, 20770, 22570, 22940, 24790, 26474, 28609, 29078, 31598, 32116, 34706, 37820, 40145, 40870, 41540, 45140, 49580, 52948, 57218, 58156, 63196, 66185, 69412, 69967, 72695, 76849, 78995, 80290, 81740, 86765, 114436, 126697, 132370, 139934, 143045, 145390, 151219, 153698, 157990, 160580, 173530, 253394, 264740, 279868, 286090, 290780, 302438, 307396, 315980, 347060, 349835, 384245, 489769, 506788, 537943, 572180, 604876, 633485, 699670, 756095, 768490, 886879, 979538, 1058533, 1075886, 1266970, 1399340, 1512190, 1536980, 1773758, 1959076, 2117066, 2151772, 2448845, 2533940, 2689715, 3024380, 3547516, 4234132, 4434395, 4687789, 4897690, 5292665, 5379430, 8868790, 9375578, 9795380, 10585330, 10758860, 17737580, 18751156, 21170660, 23438945, 32814523, 46877890, 65629046, 93755780, 131258092, 164072615, 328145230, 656290460]

約数ペア:

[(1, 656290460), (2, 328145230), (4, 164072615), (5, 131258092), (7, 93755780), (10, 65629046), (14, 46877890), (20, 32814523), (28, 23438945), (31, 21170660), (35, 18751156), (37, 17737580), (61, 10758860), (62, 10585330), (67, 9795380), (70, 9375578), (74, 8868790), (122, 5379430), (124, 5292665), (134, 4897690), (140, 4687789), (148, 4434395), (155, 4234132), (185, 3547516), (217, 3024380), (244, 2689715), (259, 2533940), (268, 2448845), (305, 2151772), (310, 2117066), (335, 1959076), (370, 1773758), (427, 1536980), (434, 1512190), (469, 1399340), (518, 1266970), (610, 1075886), (620, 1058533), (670, 979538), (740, 886879), (854, 768490), (868, 756095), (938, 699670), (1036, 633485), (1085, 604876), (1147, 572180), (1220, 537943), (1295, 506788), (1340, 489769), (1708, 384245), (1876, 349835), (1891, 347060), (2077, 315980), (2135, 307396), (2170, 302438), (2257, 290780), (2294, 286090), (2345, 279868), (2479, 264740), (2590, 253394), (3782, 173530), (4087, 160580), (4154, 157990), (4270, 153698), (4340, 151219), (4514, 145390), (4588, 143045), (4690, 139934), (4958, 132370), (5180, 126697), (5735, 114436), (7564, 86765), (8029, 81740), (8174, 80290), (8308, 78995), (8540, 76849), (9028, 72695), (9380, 69967), (9455, 69412), (9916, 66185), (10385, 63196), (11285, 58156), (11470, 57218), (12395, 52948), (13237, 49580), (14539, 45140), (15799, 41540), (16058, 40870), (16348, 40145), (17353, 37820), (18910, 34706), (20435, 32116), (20770, 31598), (22570, 29078), (22940, 28609), (24790, 26474)]