25692520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1031}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 66873600

約数和(自身を除く): 41181080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1031, 1246, 1780, 2062, 2492, 3115, 3560, 4124, 4984, 5155, 6230, 7217, 8248, 10310, 12460, 14434, 20620, 24920, 28868, 36085, 41240, 57736, 72170, 91759, 144340, 183518, 288680, 367036, 458795, 642313, 734072, 917590, 1284626, 1835180, 2569252, 3211565, 3670360, 5138504, 6423130, 12846260, 25692520]

約数ペア:

[(1, 25692520), (2, 12846260), (4, 6423130), (5, 5138504), (7, 3670360), (8, 3211565), (10, 2569252), (14, 1835180), (20, 1284626), (28, 917590), (35, 734072), (40, 642313), (56, 458795), (70, 367036), (89, 288680), (140, 183518), (178, 144340), (280, 91759), (356, 72170), (445, 57736), (623, 41240), (712, 36085), (890, 28868), (1031, 24920), (1246, 20620), (1780, 14434), (2062, 12460), (2492, 10310), (3115, 8248), (3560, 7217), (4124, 6230), (4984, 5155)]