30977800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:168

約数の個数: 144

約数和(自身を含む): 87466500

約数和(自身を除く): 56488700

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 49, 50, 56, 58, 70, 98, 100, 109, 116, 140, 145, 175, 196, 200, 203, 218, 232, 245, 280, 290, 350, 392, 406, 436, 490, 545, 580, 700, 725, 763, 812, 872, 980, 1015, 1090, 1160, 1225, 1400, 1421, 1450, 1526, 1624, 1960, 2030, 2180, 2450, 2725, 2842, 2900, 3052, 3161, 3815, 4060, 4360, 4900, 5075, 5341, 5450, 5684, 5800, 6104, 6322, 7105, 7630, 8120, 9800, 10150, 10682, 10900, 11368, 12644, 14210, 15260, 15805, 19075, 20300, 21364, 21800, 22127, 25288, 26705, 28420, 30520, 31610, 35525, 38150, 40600, 42728, 44254, 53410, 56840, 63220, 71050, 76300, 79025, 88508, 106820, 110635, 126440, 133525, 142100, 152600, 154889, 158050, 177016, 213640, 221270, 267050, 284200, 309778, 316100, 442540, 534100, 553175, 619556, 632200, 774445, 885080, 1068200, 1106350, 1239112, 1548890, 2212700, 3097780, 3872225, 4425400, 6195560, 7744450, 15488900, 30977800]

約数ペア:

[(1, 30977800), (2, 15488900), (4, 7744450), (5, 6195560), (7, 4425400), (8, 3872225), (10, 3097780), (14, 2212700), (20, 1548890), (25, 1239112), (28, 1106350), (29, 1068200), (35, 885080), (40, 774445), (49, 632200), (50, 619556), (56, 553175), (58, 534100), (70, 442540), (98, 316100), (100, 309778), (109, 284200), (116, 267050), (140, 221270), (145, 213640), (175, 177016), (196, 158050), (200, 154889), (203, 152600), (218, 142100), (232, 133525), (245, 126440), (280, 110635), (290, 106820), (350, 88508), (392, 79025), (406, 76300), (436, 71050), (490, 63220), (545, 56840), (580, 53410), (700, 44254), (725, 42728), (763, 40600), (812, 38150), (872, 35525), (980, 31610), (1015, 30520), (1090, 28420), (1160, 26705), (1225, 25288), (1400, 22127), (1421, 21800), (1450, 21364), (1526, 20300), (1624, 19075), (1960, 15805), (2030, 15260), (2180, 14210), (2450, 12644), (2725, 11368), (2842, 10900), (2900, 10682), (3052, 10150), (3161, 9800), (3815, 8120), (4060, 7630), (4360, 7105), (4900, 6322), (5075, 6104), (5341, 5800), (5450, 5684)]