221343472

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1723}}^1$

素因数の和:1806

約数の個数: 80

約数和(自身を含む): 519903232

約数和(自身を除く): 298559760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 37, 56, 62, 74, 112, 124, 148, 217, 248, 259, 296, 434, 496, 518, 592, 868, 1036, 1147, 1723, 1736, 2072, 2294, 3446, 3472, 4144, 4588, 6892, 8029, 9176, 12061, 13784, 16058, 18352, 24122, 27568, 32116, 48244, 53413, 63751, 64232, 96488, 106826, 127502, 128464, 192976, 213652, 255004, 373891, 427304, 446257, 510008, 747782, 854608, 892514, 1020016, 1495564, 1785028, 1976281, 2991128, 3570056, 3952562, 5982256, 7140112, 7905124, 13833967, 15810248, 27667934, 31620496, 55335868, 110671736, 221343472]

約数ペア:

[(1, 221343472), (2, 110671736), (4, 55335868), (7, 31620496), (8, 27667934), (14, 15810248), (16, 13833967), (28, 7905124), (31, 7140112), (37, 5982256), (56, 3952562), (62, 3570056), (74, 2991128), (112, 1976281), (124, 1785028), (148, 1495564), (217, 1020016), (248, 892514), (259, 854608), (296, 747782), (434, 510008), (496, 446257), (518, 427304), (592, 373891), (868, 255004), (1036, 213652), (1147, 192976), (1723, 128464), (1736, 127502), (2072, 106826), (2294, 96488), (3446, 64232), (3472, 63751), (4144, 53413), (4588, 48244), (6892, 32116), (8029, 27568), (9176, 24122), (12061, 18352), (13784, 16058)]