18862415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 29417472

約数和(自身を除く): 10555057

約数列:

[1, 5, 11, 13, 23, 31, 37, 55, 65, 115, 143, 155, 185, 253, 299, 341, 403, 407, 481, 713, 715, 851, 1147, 1265, 1495, 1705, 2015, 2035, 2405, 3289, 3565, 4255, 4433, 5291, 5735, 7843, 9269, 9361, 11063, 12617, 14911, 16445, 22165, 26381, 26455, 39215, 46345, 46805, 55315, 63085, 74555, 101959, 121693, 131905, 164021, 290191, 342953, 509795, 608465, 820105, 1450955, 1714765, 3772483, 18862415]

約数ペア:

[(1, 18862415), (5, 3772483), (11, 1714765), (13, 1450955), (23, 820105), (31, 608465), (37, 509795), (55, 342953), (65, 290191), (115, 164021), (143, 131905), (155, 121693), (185, 101959), (253, 74555), (299, 63085), (341, 55315), (403, 46805), (407, 46345), (481, 39215), (713, 26455), (715, 26381), (851, 22165), (1147, 16445), (1265, 14911), (1495, 12617), (1705, 11063), (2015, 9361), (2035, 9269), (2405, 7843), (3289, 5735), (3565, 5291), (4255, 4433)]