17991620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{593}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 21825388

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 593, 740, 820, 1186, 1517, 2372, 2965, 3034, 5930, 6068, 7585, 11860, 15170, 21941, 24313, 30340, 43882, 48626, 87764, 97252, 109705, 121565, 219410, 243130, 438820, 486260, 899581, 1799162, 3598324, 4497905, 8995810, 17991620]

約数ペア:

[(1, 17991620), (2, 8995810), (4, 4497905), (5, 3598324), (10, 1799162), (20, 899581), (37, 486260), (41, 438820), (74, 243130), (82, 219410), (148, 121565), (164, 109705), (185, 97252), (205, 87764), (370, 48626), (410, 43882), (593, 30340), (740, 24313), (820, 21941), (1186, 15170), (1517, 11860), (2372, 7585), (2965, 6068), (3034, 5930)]