74189620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 160509888

約数和(自身を除く): 86320268

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 281, 307, 430, 562, 614, 860, 1124, 1228, 1405, 1535, 2810, 3070, 5620, 6140, 12083, 13201, 24166, 26402, 48332, 52804, 60415, 66005, 86267, 120830, 132010, 172534, 241660, 264020, 345068, 431335, 862670, 1725340, 3709481, 7418962, 14837924, 18547405, 37094810, 74189620]

約数ペア:

[(1, 74189620), (2, 37094810), (4, 18547405), (5, 14837924), (10, 7418962), (20, 3709481), (43, 1725340), (86, 862670), (172, 431335), (215, 345068), (281, 264020), (307, 241660), (430, 172534), (562, 132010), (614, 120830), (860, 86267), (1124, 66005), (1228, 60415), (1405, 52804), (1535, 48332), (2810, 26402), (3070, 24166), (5620, 13201), (6140, 12083)]