280450184

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 669600000

約数和(自身を除く): 389149816

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 61, 76, 116, 122, 133, 149, 152, 203, 232, 244, 266, 298, 406, 427, 488, 532, 551, 596, 812, 854, 1043, 1064, 1102, 1159, 1192, 1624, 1708, 1769, 2086, 2204, 2318, 2831, 3416, 3538, 3857, 4172, 4321, 4408, 4636, 5662, 7076, 7714, 8113, 8344, 8642, 9089, 9272, 11324, 12383, 14152, 15428, 16226, 17284, 18178, 19817, 22648, 24766, 30247, 30856, 32452, 33611, 34568, 36356, 39634, 49532, 60494, 63623, 64904, 67222, 72712, 79268, 82099, 99064, 120988, 127246, 134444, 158536, 164198, 172691, 235277, 241976, 254492, 263581, 268888, 328396, 345382, 470554, 508984, 527162, 574693, 656792, 690764, 941108, 1054324, 1149386, 1208837, 1381528, 1845067, 1882216, 2108648, 2298772, 2417674, 3690134, 4597544, 4835348, 5008039, 7380268, 9670696, 10016078, 14760536, 20032156, 35056273, 40064312, 70112546, 140225092, 280450184]

約数ペア:

[(1, 280450184), (2, 140225092), (4, 70112546), (7, 40064312), (8, 35056273), (14, 20032156), (19, 14760536), (28, 10016078), (29, 9670696), (38, 7380268), (56, 5008039), (58, 4835348), (61, 4597544), (76, 3690134), (116, 2417674), (122, 2298772), (133, 2108648), (149, 1882216), (152, 1845067), (203, 1381528), (232, 1208837), (244, 1149386), (266, 1054324), (298, 941108), (406, 690764), (427, 656792), (488, 574693), (532, 527162), (551, 508984), (596, 470554), (812, 345382), (854, 328396), (1043, 268888), (1064, 263581), (1102, 254492), (1159, 241976), (1192, 235277), (1624, 172691), (1708, 164198), (1769, 158536), (2086, 134444), (2204, 127246), (2318, 120988), (2831, 99064), (3416, 82099), (3538, 79268), (3857, 72712), (4172, 67222), (4321, 64904), (4408, 63623), (4636, 60494), (5662, 49532), (7076, 39634), (7714, 36356), (8113, 34568), (8344, 33611), (8642, 32452), (9089, 30856), (9272, 30247), (11324, 24766), (12383, 22648), (14152, 19817), (15428, 18178), (16226, 17284)]