782420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 1814400

約数和(自身を除く): 1031980

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 71, 76, 95, 116, 142, 145, 190, 284, 290, 355, 380, 551, 580, 710, 1102, 1349, 1420, 2059, 2204, 2698, 2755, 4118, 5396, 5510, 6745, 8236, 10295, 11020, 13490, 20590, 26980, 39121, 41180, 78242, 156484, 195605, 391210, 782420]

約数ペア:

[(1, 782420), (2, 391210), (4, 195605), (5, 156484), (10, 78242), (19, 41180), (20, 39121), (29, 26980), (38, 20590), (58, 13490), (71, 11020), (76, 10295), (95, 8236), (116, 6745), (142, 5510), (145, 5396), (190, 4118), (284, 2755), (290, 2698), (355, 2204), (380, 2059), (551, 1420), (580, 1349), (710, 1102)]