31112440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 73120320

約数和(自身を除く): 42007880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 82, 122, 164, 205, 244, 305, 311, 328, 410, 488, 610, 622, 820, 1220, 1244, 1555, 1640, 2440, 2488, 2501, 3110, 5002, 6220, 10004, 12440, 12505, 12751, 18971, 20008, 25010, 25502, 37942, 50020, 51004, 63755, 75884, 94855, 100040, 102008, 127510, 151768, 189710, 255020, 379420, 510040, 758840, 777811, 1555622, 3111244, 3889055, 6222488, 7778110, 15556220, 31112440]

約数ペア:

[(1, 31112440), (2, 15556220), (4, 7778110), (5, 6222488), (8, 3889055), (10, 3111244), (20, 1555622), (40, 777811), (41, 758840), (61, 510040), (82, 379420), (122, 255020), (164, 189710), (205, 151768), (244, 127510), (305, 102008), (311, 100040), (328, 94855), (410, 75884), (488, 63755), (610, 51004), (622, 50020), (820, 37942), (1220, 25502), (1244, 25010), (1555, 20008), (1640, 18971), (2440, 12751), (2488, 12505), (2501, 12440), (3110, 10004), (5002, 6220)]