19806772

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 18295628

約数列:

[1, 2, 4, 23, 41, 46, 59, 82, 89, 92, 118, 164, 178, 236, 356, 943, 1357, 1886, 2047, 2419, 2714, 3649, 3772, 4094, 4838, 5251, 5428, 7298, 8188, 9676, 10502, 14596, 21004, 55637, 83927, 111274, 120773, 167854, 215291, 222548, 241546, 335708, 430582, 483092, 861164, 4951693, 9903386, 19806772]

約数ペア:

[(1, 19806772), (2, 9903386), (4, 4951693), (23, 861164), (41, 483092), (46, 430582), (59, 335708), (82, 241546), (89, 222548), (92, 215291), (118, 167854), (164, 120773), (178, 111274), (236, 83927), (356, 55637), (943, 21004), (1357, 14596), (1886, 10502), (2047, 9676), (2419, 8188), (2714, 7298), (3649, 5428), (3772, 5251), (4094, 4838)]