778995280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1951}}^1$

素因数の和:2025

約数の個数: 160

約数和(自身を含む): 2230714368

約数和(自身を除く): 1451719088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 644, 713, 805, 868, 920, 1085, 1240, 1288, 1426, 1610, 1736, 1840, 1951, 2170, 2480, 2576, 2852, 3220, 3472, 3565, 3902, 4340, 4991, 5704, 6440, 7130, 7804, 8680, 9755, 9982, 11408, 12880, 13657, 14260, 15608, 17360, 19510, 19964, 24955, 27314, 28520, 31216, 39020, 39928, 44873, 49910, 54628, 57040, 60481, 68285, 78040, 79856, 89746, 99820, 109256, 120962, 136570, 156080, 179492, 199640, 218512, 224365, 241924, 273140, 302405, 314111, 358984, 399280, 423367, 448730, 483848, 546280, 604810, 628222, 717968, 846734, 897460, 967696, 1092560, 1209620, 1256444, 1391063, 1570555, 1693468, 1794920, 2116835, 2419240, 2512888, 2782126, 3141110, 3386936, 3589840, 4233670, 4838480, 5025776, 5564252, 6282220, 6773872, 6955315, 8467340, 9737441, 11128504, 12564440, 13910630, 16934680, 19474882, 22257008, 25128880, 27821260, 33869360, 38949764, 48687205, 55642520, 77899528, 97374410, 111285040, 155799056, 194748820, 389497640, 778995280]

約数ペア:

[(1, 778995280), (2, 389497640), (4, 194748820), (5, 155799056), (7, 111285040), (8, 97374410), (10, 77899528), (14, 55642520), (16, 48687205), (20, 38949764), (23, 33869360), (28, 27821260), (31, 25128880), (35, 22257008), (40, 19474882), (46, 16934680), (56, 13910630), (62, 12564440), (70, 11128504), (80, 9737441), (92, 8467340), (112, 6955315), (115, 6773872), (124, 6282220), (140, 5564252), (155, 5025776), (161, 4838480), (184, 4233670), (217, 3589840), (230, 3386936), (248, 3141110), (280, 2782126), (310, 2512888), (322, 2419240), (368, 2116835), (434, 1794920), (460, 1693468), (496, 1570555), (560, 1391063), (620, 1256444), (644, 1209620), (713, 1092560), (805, 967696), (868, 897460), (920, 846734), (1085, 717968), (1240, 628222), (1288, 604810), (1426, 546280), (1610, 483848), (1736, 448730), (1840, 423367), (1951, 399280), (2170, 358984), (2480, 314111), (2576, 302405), (2852, 273140), (3220, 241924), (3472, 224365), (3565, 218512), (3902, 199640), (4340, 179492), (4991, 156080), (5704, 136570), (6440, 120962), (7130, 109256), (7804, 99820), (8680, 89746), (9755, 79856), (9982, 78040), (11408, 68285), (12880, 60481), (13657, 57040), (14260, 54628), (15608, 49910), (17360, 44873), (19510, 39928), (19964, 39020), (24955, 31216), (27314, 28520)]