20626780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 50319360

約数和(自身を除く): 29692580

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 31, 34, 38, 62, 68, 76, 85, 95, 103, 124, 155, 170, 190, 206, 310, 323, 340, 380, 412, 515, 527, 589, 620, 646, 1030, 1054, 1178, 1292, 1615, 1751, 1957, 2060, 2108, 2356, 2635, 2945, 3193, 3230, 3502, 3914, 5270, 5890, 6386, 6460, 7004, 7828, 8755, 9785, 10013, 10540, 11780, 12772, 15965, 17510, 19570, 20026, 31930, 33269, 35020, 39140, 40052, 50065, 54281, 60667, 63860, 66538, 100130, 108562, 121334, 133076, 166345, 200260, 217124, 242668, 271405, 303335, 332690, 542810, 606670, 665380, 1031339, 1085620, 1213340, 2062678, 4125356, 5156695, 10313390, 20626780]

約数ペア:

[(1, 20626780), (2, 10313390), (4, 5156695), (5, 4125356), (10, 2062678), (17, 1213340), (19, 1085620), (20, 1031339), (31, 665380), (34, 606670), (38, 542810), (62, 332690), (68, 303335), (76, 271405), (85, 242668), (95, 217124), (103, 200260), (124, 166345), (155, 133076), (170, 121334), (190, 108562), (206, 100130), (310, 66538), (323, 63860), (340, 60667), (380, 54281), (412, 50065), (515, 40052), (527, 39140), (589, 35020), (620, 33269), (646, 31930), (1030, 20026), (1054, 19570), (1178, 17510), (1292, 15965), (1615, 12772), (1751, 11780), (1957, 10540), (2060, 10013), (2108, 9785), (2356, 8755), (2635, 7828), (2945, 7004), (3193, 6460), (3230, 6386), (3502, 5890), (3914, 5270)]