138875800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 386760960

約数和(自身を除く): 247885160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 37, 40, 49, 50, 56, 70, 74, 98, 100, 140, 148, 175, 185, 196, 200, 245, 259, 280, 296, 350, 370, 383, 392, 490, 518, 700, 740, 766, 925, 980, 1036, 1225, 1295, 1400, 1480, 1532, 1813, 1850, 1915, 1960, 2072, 2450, 2590, 2681, 3064, 3626, 3700, 3830, 4900, 5180, 5362, 6475, 7252, 7400, 7660, 9065, 9575, 9800, 10360, 10724, 12950, 13405, 14171, 14504, 15320, 18130, 18767, 19150, 21448, 25900, 26810, 28342, 36260, 37534, 38300, 45325, 51800, 53620, 56684, 67025, 70855, 72520, 75068, 76600, 90650, 93835, 99197, 107240, 113368, 134050, 141710, 150136, 181300, 187670, 198394, 268100, 283420, 354275, 362600, 375340, 396788, 469175, 495985, 536200, 566840, 694379, 708550, 750680, 793576, 938350, 991970, 1388758, 1417100, 1876700, 1983940, 2479925, 2777516, 2834200, 3471895, 3753400, 3967880, 4959850, 5555032, 6943790, 9919700, 13887580, 17359475, 19839400, 27775160, 34718950, 69437900, 138875800]

約数ペア:

[(1, 138875800), (2, 69437900), (4, 34718950), (5, 27775160), (7, 19839400), (8, 17359475), (10, 13887580), (14, 9919700), (20, 6943790), (25, 5555032), (28, 4959850), (35, 3967880), (37, 3753400), (40, 3471895), (49, 2834200), (50, 2777516), (56, 2479925), (70, 1983940), (74, 1876700), (98, 1417100), (100, 1388758), (140, 991970), (148, 938350), (175, 793576), (185, 750680), (196, 708550), (200, 694379), (245, 566840), (259, 536200), (280, 495985), (296, 469175), (350, 396788), (370, 375340), (383, 362600), (392, 354275), (490, 283420), (518, 268100), (700, 198394), (740, 187670), (766, 181300), (925, 150136), (980, 141710), (1036, 134050), (1225, 113368), (1295, 107240), (1400, 99197), (1480, 93835), (1532, 90650), (1813, 76600), (1850, 75068), (1915, 72520), (1960, 70855), (2072, 67025), (2450, 56684), (2590, 53620), (2681, 51800), (3064, 45325), (3626, 38300), (3700, 37534), (3830, 36260), (4900, 28342), (5180, 26810), (5362, 25900), (6475, 21448), (7252, 19150), (7400, 18767), (7660, 18130), (9065, 15320), (9575, 14504), (9800, 14171), (10360, 13405), (10724, 12950)]