18100420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 23812220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1619, 2236, 2795, 3238, 5590, 6476, 8095, 11180, 16190, 21047, 32380, 42094, 69617, 84188, 105235, 139234, 210470, 278468, 348085, 420940, 696170, 905021, 1392340, 1810042, 3620084, 4525105, 9050210, 18100420]

約数ペア:

[(1, 18100420), (2, 9050210), (4, 4525105), (5, 3620084), (10, 1810042), (13, 1392340), (20, 905021), (26, 696170), (43, 420940), (52, 348085), (65, 278468), (86, 210470), (130, 139234), (172, 105235), (215, 84188), (260, 69617), (430, 42094), (559, 32380), (860, 21047), (1118, 16190), (1619, 11180), (2236, 8095), (2795, 6476), (3238, 5590)]