19088440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9739}}^1$

素因数の和:9764

約数の個数: 48

約数和(自身を含む): 49966200

約数和(自身を除く): 30877760

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, 9739, 19478, 38956, 48695, 68173, 77912, 97390, 136346, 194780, 272692, 340865, 389560, 477211, 545384, 681730, 954422, 1363460, 1908844, 2386055, 2726920, 3817688, 4772110, 9544220, 19088440]

約数ペア:

[(1, 19088440), (2, 9544220), (4, 4772110), (5, 3817688), (7, 2726920), (8, 2386055), (10, 1908844), (14, 1363460), (20, 954422), (28, 681730), (35, 545384), (40, 477211), (49, 389560), (56, 340865), (70, 272692), (98, 194780), (140, 136346), (196, 97390), (245, 77912), (280, 68173), (392, 48695), (490, 38956), (980, 19478), (1960, 9739)]