27931280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 70870464

約数和(自身を除く): 42939184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 251, 260, 428, 502, 520, 535, 856, 1004, 1040, 1070, 1255, 1391, 1712, 2008, 2140, 2510, 2782, 3263, 4016, 4280, 5020, 5564, 6526, 6955, 8560, 10040, 11128, 13052, 13910, 16315, 20080, 22256, 26104, 26857, 27820, 32630, 52208, 53714, 55640, 65260, 107428, 111280, 130520, 134285, 214856, 261040, 268570, 349141, 429712, 537140, 698282, 1074280, 1396564, 1745705, 2148560, 2793128, 3491410, 5586256, 6982820, 13965640, 27931280]

約数ペア:

[(1, 27931280), (2, 13965640), (4, 6982820), (5, 5586256), (8, 3491410), (10, 2793128), (13, 2148560), (16, 1745705), (20, 1396564), (26, 1074280), (40, 698282), (52, 537140), (65, 429712), (80, 349141), (104, 268570), (107, 261040), (130, 214856), (208, 134285), (214, 130520), (251, 111280), (260, 107428), (428, 65260), (502, 55640), (520, 53714), (535, 52208), (856, 32630), (1004, 27820), (1040, 26857), (1070, 26104), (1255, 22256), (1391, 20080), (1712, 16315), (2008, 13910), (2140, 13052), (2510, 11128), (2782, 10040), (3263, 8560), (4016, 6955), (4280, 6526), (5020, 5564)]