18240170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 36523872

約数和(自身を除く): 18283702

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 251, 338, 430, 502, 559, 845, 1118, 1255, 1690, 2510, 2795, 3263, 5590, 6526, 7267, 10793, 14534, 16315, 21586, 32630, 36335, 42419, 53965, 72670, 84838, 107930, 140309, 212095, 280618, 424190, 701545, 1403090, 1824017, 3648034, 9120085, 18240170]

約数ペア:

[(1, 18240170), (2, 9120085), (5, 3648034), (10, 1824017), (13, 1403090), (26, 701545), (43, 424190), (65, 280618), (86, 212095), (130, 140309), (169, 107930), (215, 84838), (251, 72670), (338, 53965), (430, 42419), (502, 36335), (559, 32630), (845, 21586), (1118, 16315), (1255, 14534), (1690, 10793), (2510, 7267), (2795, 6526), (3263, 5590)]