421356208

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 1024407648

約数和(自身を除く): 603051440

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 113, 169, 182, 197, 208, 226, 338, 364, 394, 452, 676, 728, 788, 791, 904, 1183, 1352, 1379, 1456, 1469, 1576, 1582, 1808, 2366, 2561, 2704, 2758, 2938, 3152, 3164, 4732, 5122, 5516, 5876, 6328, 9464, 10244, 10283, 11032, 11752, 12656, 17927, 18928, 19097, 20488, 20566, 22064, 22261, 23504, 33293, 35854, 38194, 40976, 41132, 44522, 66586, 71708, 76388, 82264, 89044, 133172, 133679, 143416, 152776, 155827, 164528, 178088, 233051, 266344, 267358, 286832, 289393, 305552, 311654, 356176, 466102, 532688, 534716, 578786, 623308, 932204, 1069432, 1157572, 1246616, 1864408, 2025751, 2138864, 2315144, 2493232, 3728816, 3762109, 4051502, 4630288, 7524218, 8103004, 15048436, 16206008, 26334763, 30096872, 32412016, 52669526, 60193744, 105339052, 210678104, 421356208]

約数ペア:

[(1, 421356208), (2, 210678104), (4, 105339052), (7, 60193744), (8, 52669526), (13, 32412016), (14, 30096872), (16, 26334763), (26, 16206008), (28, 15048436), (52, 8103004), (56, 7524218), (91, 4630288), (104, 4051502), (112, 3762109), (113, 3728816), (169, 2493232), (182, 2315144), (197, 2138864), (208, 2025751), (226, 1864408), (338, 1246616), (364, 1157572), (394, 1069432), (452, 932204), (676, 623308), (728, 578786), (788, 534716), (791, 532688), (904, 466102), (1183, 356176), (1352, 311654), (1379, 305552), (1456, 289393), (1469, 286832), (1576, 267358), (1582, 266344), (1808, 233051), (2366, 178088), (2561, 164528), (2704, 155827), (2758, 152776), (2938, 143416), (3152, 133679), (3164, 133172), (4732, 89044), (5122, 82264), (5516, 76388), (5876, 71708), (6328, 66586), (9464, 44522), (10244, 41132), (10283, 40976), (11032, 38194), (11752, 35854), (12656, 33293), (17927, 23504), (18928, 22261), (19097, 22064), (20488, 20566)]