16957880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 41018400

約数和(自身を除く): 24060520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 421, 424, 530, 760, 842, 1007, 1060, 1684, 2014, 2105, 2120, 3368, 4028, 4210, 5035, 7999, 8056, 8420, 10070, 15998, 16840, 20140, 22313, 31996, 39995, 40280, 44626, 63992, 79990, 89252, 111565, 159980, 178504, 223130, 319960, 423947, 446260, 847894, 892520, 1695788, 2119735, 3391576, 4239470, 8478940, 16957880]

約数ペア:

[(1, 16957880), (2, 8478940), (4, 4239470), (5, 3391576), (8, 2119735), (10, 1695788), (19, 892520), (20, 847894), (38, 446260), (40, 423947), (53, 319960), (76, 223130), (95, 178504), (106, 159980), (152, 111565), (190, 89252), (212, 79990), (265, 63992), (380, 44626), (421, 40280), (424, 39995), (530, 31996), (760, 22313), (842, 20140), (1007, 16840), (1060, 15998), (1684, 10070), (2014, 8420), (2105, 8056), (2120, 7999), (3368, 5035), (4028, 4210)]