18696440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9539}}^1$

素因数の和:9564

約数の個数: 48

約数和(自身を含む): 48940200

約数和(自身を除く): 30243760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9539, 19078, 38156, 47695, 66773, 76312, 95390, 133546, 190780, 267092, 333865, 381560, 467411, 534184, 667730, 934822, 1335460, 1869644, 2337055, 2670920, 3739288, 4674110, 9348220, 18696440]

約数ペア:

[(1, 18696440), (2, 9348220), (4, 4674110), (5, 3739288), (7, 2670920), (8, 2337055), (10, 1869644), (14, 1335460), (20, 934822), (28, 667730), (35, 534184), (40, 467411), (49, 381560), (56, 333865), (70, 267092), (98, 190780), (140, 133546), (196, 95390), (245, 76312), (280, 66773), (392, 47695), (490, 38156), (980, 19078), (1960, 9539)]