16747220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 42747264

約数和(自身を除く): 26000044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 743, 805, 980, 1127, 1486, 1610, 2254, 2972, 3220, 3715, 4508, 5201, 5635, 7430, 10402, 11270, 14860, 17089, 20804, 22540, 26005, 34178, 36407, 52010, 68356, 72814, 85445, 104020, 119623, 145628, 170890, 182035, 239246, 341780, 364070, 478492, 598115, 728140, 837361, 1196230, 1674722, 2392460, 3349444, 4186805, 8373610, 16747220]

約数ペア:

[(1, 16747220), (2, 8373610), (4, 4186805), (5, 3349444), (7, 2392460), (10, 1674722), (14, 1196230), (20, 837361), (23, 728140), (28, 598115), (35, 478492), (46, 364070), (49, 341780), (70, 239246), (92, 182035), (98, 170890), (115, 145628), (140, 119623), (161, 104020), (196, 85445), (230, 72814), (245, 68356), (322, 52010), (460, 36407), (490, 34178), (644, 26005), (743, 22540), (805, 20804), (980, 17089), (1127, 14860), (1486, 11270), (1610, 10402), (2254, 7430), (2972, 5635), (3220, 5201), (3715, 4508)]