278463640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{677}}^1$

素因数の和:821

約数の個数: 128

約数和(自身を含む): 779103360

約数和(自身を除く): 500639720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 113, 130, 140, 182, 226, 260, 280, 364, 452, 455, 520, 565, 677, 728, 791, 904, 910, 1130, 1354, 1469, 1582, 1820, 2260, 2708, 2938, 3164, 3385, 3640, 3955, 4520, 4739, 5416, 5876, 6328, 6770, 7345, 7910, 8801, 9478, 10283, 11752, 13540, 14690, 15820, 17602, 18956, 20566, 23695, 27080, 29380, 31640, 35204, 37912, 41132, 44005, 47390, 51415, 58760, 61607, 70408, 76501, 82264, 88010, 94780, 102830, 123214, 153002, 176020, 189560, 205660, 246428, 306004, 308035, 352040, 382505, 411320, 492856, 535507, 612008, 616070, 765010, 994513, 1071014, 1232140, 1530020, 1989026, 2142028, 2464280, 2677535, 3060040, 3978052, 4284056, 4972565, 5355070, 6961591, 7956104, 9945130, 10710140, 13923182, 19890260, 21420280, 27846364, 34807955, 39780520, 55692728, 69615910, 139231820, 278463640]

約数ペア:

[(1, 278463640), (2, 139231820), (4, 69615910), (5, 55692728), (7, 39780520), (8, 34807955), (10, 27846364), (13, 21420280), (14, 19890260), (20, 13923182), (26, 10710140), (28, 9945130), (35, 7956104), (40, 6961591), (52, 5355070), (56, 4972565), (65, 4284056), (70, 3978052), (91, 3060040), (104, 2677535), (113, 2464280), (130, 2142028), (140, 1989026), (182, 1530020), (226, 1232140), (260, 1071014), (280, 994513), (364, 765010), (452, 616070), (455, 612008), (520, 535507), (565, 492856), (677, 411320), (728, 382505), (791, 352040), (904, 308035), (910, 306004), (1130, 246428), (1354, 205660), (1469, 189560), (1582, 176020), (1820, 153002), (2260, 123214), (2708, 102830), (2938, 94780), (3164, 88010), (3385, 82264), (3640, 76501), (3955, 70408), (4520, 61607), (4739, 58760), (5416, 51415), (5876, 47390), (6328, 44005), (6770, 41132), (7345, 37912), (7910, 35204), (8801, 31640), (9478, 29380), (10283, 27080), (11752, 23695), (13540, 20566), (14690, 18956), (15820, 17602)]