8427440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 22766400

約数和(自身を除く): 14338960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 149, 202, 280, 298, 404, 505, 560, 596, 707, 745, 808, 1010, 1043, 1192, 1414, 1490, 1616, 2020, 2086, 2384, 2828, 2980, 3535, 4040, 4172, 5215, 5656, 5960, 7070, 8080, 8344, 10430, 11312, 11920, 14140, 15049, 16688, 20860, 28280, 30098, 41720, 56560, 60196, 75245, 83440, 105343, 120392, 150490, 210686, 240784, 300980, 421372, 526715, 601960, 842744, 1053430, 1203920, 1685488, 2106860, 4213720, 8427440]

約数ペア:

[(1, 8427440), (2, 4213720), (4, 2106860), (5, 1685488), (7, 1203920), (8, 1053430), (10, 842744), (14, 601960), (16, 526715), (20, 421372), (28, 300980), (35, 240784), (40, 210686), (56, 150490), (70, 120392), (80, 105343), (101, 83440), (112, 75245), (140, 60196), (149, 56560), (202, 41720), (280, 30098), (298, 28280), (404, 20860), (505, 16688), (560, 15049), (596, 14140), (707, 11920), (745, 11312), (808, 10430), (1010, 8344), (1043, 8080), (1192, 7070), (1414, 5960), (1490, 5656), (1616, 5215), (2020, 4172), (2086, 4040), (2384, 3535), (2828, 2980)]