1380521720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{22811}}^1$

素因数の和:22928

約数の個数: 64

約数和(自身を含む): 3325989600

約数和(自身を除く): 1945467880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 680, 712, 890, 1513, 1780, 3026, 3560, 6052, 7565, 12104, 15130, 22811, 30260, 45622, 60520, 91244, 114055, 182488, 228110, 387787, 456220, 775574, 912440, 1551148, 1938935, 2030179, 3102296, 3877870, 4060358, 7755740, 8120716, 10150895, 15511480, 16241432, 20301790, 34513043, 40603580, 69026086, 81207160, 138052172, 172565215, 276104344, 345130430, 690260860, 1380521720]

約数ペア:

[(1, 1380521720), (2, 690260860), (4, 345130430), (5, 276104344), (8, 172565215), (10, 138052172), (17, 81207160), (20, 69026086), (34, 40603580), (40, 34513043), (68, 20301790), (85, 16241432), (89, 15511480), (136, 10150895), (170, 8120716), (178, 7755740), (340, 4060358), (356, 3877870), (445, 3102296), (680, 2030179), (712, 1938935), (890, 1551148), (1513, 912440), (1780, 775574), (3026, 456220), (3560, 387787), (6052, 228110), (7565, 182488), (12104, 114055), (15130, 91244), (22811, 60520), (30260, 45622)]