78838020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 253169280

約数和(自身を除く): 174331260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 137, 138, 139, 180, 207, 230, 274, 276, 278, 345, 411, 414, 417, 460, 548, 556, 685, 690, 695, 822, 828, 834, 1035, 1233, 1251, 1370, 1380, 1390, 1644, 1668, 2055, 2070, 2085, 2466, 2502, 2740, 2780, 3151, 3197, 4110, 4140, 4170, 4932, 5004, 6165, 6255, 6302, 6394, 8220, 8340, 9453, 9591, 12330, 12510, 12604, 12788, 15755, 15985, 18906, 19043, 19182, 24660, 25020, 28359, 28773, 31510, 31970, 37812, 38086, 38364, 47265, 47955, 56718, 57129, 57546, 63020, 63940, 76172, 94530, 95215, 95910, 113436, 114258, 115092, 141795, 143865, 171387, 189060, 190430, 191820, 228516, 283590, 285645, 287730, 342774, 380860, 437989, 567180, 571290, 575460, 685548, 856935, 875978, 1142580, 1313967, 1713870, 1751956, 2189945, 2627934, 3427740, 3941901, 4379890, 5255868, 6569835, 7883802, 8759780, 13139670, 15767604, 19709505, 26279340, 39419010, 78838020]

約数ペア:

[(1, 78838020), (2, 39419010), (3, 26279340), (4, 19709505), (5, 15767604), (6, 13139670), (9, 8759780), (10, 7883802), (12, 6569835), (15, 5255868), (18, 4379890), (20, 3941901), (23, 3427740), (30, 2627934), (36, 2189945), (45, 1751956), (46, 1713870), (60, 1313967), (69, 1142580), (90, 875978), (92, 856935), (115, 685548), (137, 575460), (138, 571290), (139, 567180), (180, 437989), (207, 380860), (230, 342774), (274, 287730), (276, 285645), (278, 283590), (345, 228516), (411, 191820), (414, 190430), (417, 189060), (460, 171387), (548, 143865), (556, 141795), (685, 115092), (690, 114258), (695, 113436), (822, 95910), (828, 95215), (834, 94530), (1035, 76172), (1233, 63940), (1251, 63020), (1370, 57546), (1380, 57129), (1390, 56718), (1644, 47955), (1668, 47265), (2055, 38364), (2070, 38086), (2085, 37812), (2466, 31970), (2502, 31510), (2740, 28773), (2780, 28359), (3151, 25020), (3197, 24660), (4110, 19182), (4140, 19043), (4170, 18906), (4932, 15985), (5004, 15755), (6165, 12788), (6255, 12604), (6302, 12510), (6394, 12330), (8220, 9591), (8340, 9453)]