21451360

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 58786560

約数和(自身を除く): 37335200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 107, 112, 140, 160, 179, 214, 224, 280, 358, 428, 535, 560, 716, 749, 856, 895, 1070, 1120, 1253, 1432, 1498, 1712, 1790, 2140, 2506, 2864, 2996, 3424, 3580, 3745, 4280, 5012, 5728, 5992, 6265, 7160, 7490, 8560, 10024, 11984, 12530, 14320, 14980, 17120, 19153, 20048, 23968, 25060, 28640, 29960, 38306, 40096, 50120, 59920, 76612, 95765, 100240, 119840, 134071, 153224, 191530, 200480, 268142, 306448, 383060, 536284, 612896, 670355, 766120, 1072568, 1340710, 1532240, 2145136, 2681420, 3064480, 4290272, 5362840, 10725680, 21451360]

約数ペア:

[(1, 21451360), (2, 10725680), (4, 5362840), (5, 4290272), (7, 3064480), (8, 2681420), (10, 2145136), (14, 1532240), (16, 1340710), (20, 1072568), (28, 766120), (32, 670355), (35, 612896), (40, 536284), (56, 383060), (70, 306448), (80, 268142), (107, 200480), (112, 191530), (140, 153224), (160, 134071), (179, 119840), (214, 100240), (224, 95765), (280, 76612), (358, 59920), (428, 50120), (535, 40096), (560, 38306), (716, 29960), (749, 28640), (856, 25060), (895, 23968), (1070, 20048), (1120, 19153), (1253, 17120), (1432, 14980), (1498, 14320), (1712, 12530), (1790, 11984), (2140, 10024), (2506, 8560), (2864, 7490), (2996, 7160), (3424, 6265), (3580, 5992), (3745, 5728), (4280, 5012)]