81007360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{9041}}^1$

素因数の和:9069

約数の個数: 72

約数和(自身を含む): 221782176

約数和(自身を除く): 140774816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 9041, 18082, 36164, 45205, 63287, 72328, 90410, 126574, 144656, 180820, 253148, 289312, 316435, 361640, 506296, 578624, 632870, 723280, 1012592, 1157248, 1265740, 1446560, 2025184, 2314496, 2531480, 2893120, 4050368, 5062960, 5786240, 8100736, 10125920, 11572480, 16201472, 20251840, 40503680, 81007360]

約数ペア:

[(1, 81007360), (2, 40503680), (4, 20251840), (5, 16201472), (7, 11572480), (8, 10125920), (10, 8100736), (14, 5786240), (16, 5062960), (20, 4050368), (28, 2893120), (32, 2531480), (35, 2314496), (40, 2025184), (56, 1446560), (64, 1265740), (70, 1157248), (80, 1012592), (112, 723280), (128, 632870), (140, 578624), (160, 506296), (224, 361640), (256, 316435), (280, 289312), (320, 253148), (448, 180820), (560, 144656), (640, 126574), (896, 90410), (1120, 72328), (1280, 63287), (1792, 45205), (2240, 36164), (4480, 18082), (8960, 9041)]