255209360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:353

約数の個数: 160

約数和(自身を含む): 714430464

約数和(自身を除く): 459221104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 61, 62, 70, 80, 112, 122, 124, 140, 155, 217, 241, 244, 248, 280, 305, 310, 427, 434, 482, 488, 496, 560, 610, 620, 854, 868, 964, 976, 1085, 1205, 1220, 1240, 1687, 1708, 1736, 1891, 1928, 2135, 2170, 2410, 2440, 2480, 3374, 3416, 3472, 3782, 3856, 4270, 4340, 4820, 4880, 6748, 6832, 7471, 7564, 8435, 8540, 8680, 9455, 9640, 13237, 13496, 14701, 14942, 15128, 16870, 17080, 17360, 18910, 19280, 26474, 26992, 29402, 29884, 30256, 33740, 34160, 37355, 37820, 52297, 52948, 58804, 59768, 66185, 67480, 73505, 74710, 75640, 102907, 104594, 105896, 117608, 119536, 132370, 134960, 147010, 149420, 151280, 205814, 209188, 211792, 235216, 261485, 264740, 294020, 298840, 411628, 418376, 455731, 514535, 522970, 529480, 588040, 597680, 823256, 836752, 911462, 1029070, 1045940, 1058960, 1176080, 1646512, 1822924, 2058140, 2091880, 2278655, 3190117, 3645848, 4116280, 4183760, 4557310, 6380234, 7291696, 8232560, 9114620, 12760468, 15950585, 18229240, 25520936, 31901170, 36458480, 51041872, 63802340, 127604680, 255209360]

約数ペア:

[(1, 255209360), (2, 127604680), (4, 63802340), (5, 51041872), (7, 36458480), (8, 31901170), (10, 25520936), (14, 18229240), (16, 15950585), (20, 12760468), (28, 9114620), (31, 8232560), (35, 7291696), (40, 6380234), (56, 4557310), (61, 4183760), (62, 4116280), (70, 3645848), (80, 3190117), (112, 2278655), (122, 2091880), (124, 2058140), (140, 1822924), (155, 1646512), (217, 1176080), (241, 1058960), (244, 1045940), (248, 1029070), (280, 911462), (305, 836752), (310, 823256), (427, 597680), (434, 588040), (482, 529480), (488, 522970), (496, 514535), (560, 455731), (610, 418376), (620, 411628), (854, 298840), (868, 294020), (964, 264740), (976, 261485), (1085, 235216), (1205, 211792), (1220, 209188), (1240, 205814), (1687, 151280), (1708, 149420), (1736, 147010), (1891, 134960), (1928, 132370), (2135, 119536), (2170, 117608), (2410, 105896), (2440, 104594), (2480, 102907), (3374, 75640), (3416, 74710), (3472, 73505), (3782, 67480), (3856, 66185), (4270, 59768), (4340, 58804), (4820, 52948), (4880, 52297), (6748, 37820), (6832, 37355), (7471, 34160), (7564, 33740), (8435, 30256), (8540, 29884), (8680, 29402), (9455, 26992), (9640, 26474), (13237, 19280), (13496, 18910), (14701, 17360), (14942, 17080), (15128, 16870)]