79686880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:469

約数の個数: 144

約数和(自身を含む): 233531424

約数和(自身を除く): 153844544

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 224, 260, 280, 338, 364, 416, 421, 455, 520, 560, 676, 728, 842, 845, 910, 1040, 1120, 1183, 1352, 1456, 1684, 1690, 1820, 2080, 2105, 2366, 2704, 2912, 2947, 3368, 3380, 3640, 4210, 4732, 5408, 5473, 5894, 5915, 6736, 6760, 7280, 8420, 9464, 10946, 11788, 11830, 13472, 13520, 14560, 14735, 16840, 18928, 21892, 23576, 23660, 27040, 27365, 29470, 33680, 37856, 38311, 43784, 47152, 47320, 54730, 58940, 67360, 71149, 76622, 87568, 94304, 94640, 109460, 117880, 142298, 153244, 175136, 189280, 191555, 218920, 235760, 284596, 306488, 355745, 383110, 437840, 471520, 498043, 569192, 612976, 711490, 766220, 875680, 996086, 1138384, 1225952, 1422980, 1532440, 1992172, 2276768, 2490215, 2845960, 3064880, 3984344, 4980430, 5691920, 6129760, 7968688, 9960860, 11383840, 15937376, 19921720, 39843440, 79686880]

約数ペア:

[(1, 79686880), (2, 39843440), (4, 19921720), (5, 15937376), (7, 11383840), (8, 9960860), (10, 7968688), (13, 6129760), (14, 5691920), (16, 4980430), (20, 3984344), (26, 3064880), (28, 2845960), (32, 2490215), (35, 2276768), (40, 1992172), (52, 1532440), (56, 1422980), (65, 1225952), (70, 1138384), (80, 996086), (91, 875680), (104, 766220), (112, 711490), (130, 612976), (140, 569192), (160, 498043), (169, 471520), (182, 437840), (208, 383110), (224, 355745), (260, 306488), (280, 284596), (338, 235760), (364, 218920), (416, 191555), (421, 189280), (455, 175136), (520, 153244), (560, 142298), (676, 117880), (728, 109460), (842, 94640), (845, 94304), (910, 87568), (1040, 76622), (1120, 71149), (1183, 67360), (1352, 58940), (1456, 54730), (1684, 47320), (1690, 47152), (1820, 43784), (2080, 38311), (2105, 37856), (2366, 33680), (2704, 29470), (2912, 27365), (2947, 27040), (3368, 23660), (3380, 23576), (3640, 21892), (4210, 18928), (4732, 16840), (5408, 14735), (5473, 14560), (5894, 13520), (5915, 13472), (6736, 11830), (6760, 11788), (7280, 10946), (8420, 9464)]