2813440

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{157}}^1$

素因数の和:187

約数の個数: 80

約数和(自身を含む): 7758432

約数和(自身を除く): 4944992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 157, 160, 224, 256, 280, 314, 320, 448, 512, 560, 628, 640, 785, 896, 1099, 1120, 1256, 1280, 1570, 1792, 2198, 2240, 2512, 2560, 3140, 3584, 4396, 4480, 5024, 5495, 6280, 8792, 8960, 10048, 10990, 12560, 17584, 17920, 20096, 21980, 25120, 35168, 40192, 43960, 50240, 70336, 80384, 87920, 100480, 140672, 175840, 200960, 281344, 351680, 401920, 562688, 703360, 1406720, 2813440]

約数ペア:

[(1, 2813440), (2, 1406720), (4, 703360), (5, 562688), (7, 401920), (8, 351680), (10, 281344), (14, 200960), (16, 175840), (20, 140672), (28, 100480), (32, 87920), (35, 80384), (40, 70336), (56, 50240), (64, 43960), (70, 40192), (80, 35168), (112, 25120), (128, 21980), (140, 20096), (157, 17920), (160, 17584), (224, 12560), (256, 10990), (280, 10048), (314, 8960), (320, 8792), (448, 6280), (512, 5495), (560, 5024), (628, 4480), (640, 4396), (785, 3584), (896, 3140), (1099, 2560), (1120, 2512), (1256, 2240), (1280, 2198), (1570, 1792)]