20795390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26482690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 113, 154, 226, 239, 385, 478, 565, 770, 791, 1130, 1195, 1243, 1582, 1673, 2390, 2486, 2629, 3346, 3955, 5258, 6215, 7910, 8365, 8701, 12430, 13145, 16730, 17402, 18403, 26290, 27007, 36806, 43505, 54014, 87010, 92015, 135035, 184030, 189049, 270070, 297077, 378098, 594154, 945245, 1485385, 1890490, 2079539, 2970770, 4159078, 10397695, 20795390]

約数ペア:

[(1, 20795390), (2, 10397695), (5, 4159078), (7, 2970770), (10, 2079539), (11, 1890490), (14, 1485385), (22, 945245), (35, 594154), (55, 378098), (70, 297077), (77, 270070), (110, 189049), (113, 184030), (154, 135035), (226, 92015), (239, 87010), (385, 54014), (478, 43505), (565, 36806), (770, 27007), (791, 26290), (1130, 18403), (1195, 17402), (1243, 16730), (1582, 13145), (1673, 12430), (2390, 8701), (2486, 8365), (2629, 7910), (3346, 6215), (3955, 5258)]