18452980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10139}}^1$

素因数の和:10168

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 29245580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10139, 20278, 40556, 50695, 70973, 101390, 131807, 141946, 202780, 263614, 283892, 354865, 527228, 659035, 709730, 922649, 1318070, 1419460, 1845298, 2636140, 3690596, 4613245, 9226490, 18452980]

約数ペア:

[(1, 18452980), (2, 9226490), (4, 4613245), (5, 3690596), (7, 2636140), (10, 1845298), (13, 1419460), (14, 1318070), (20, 922649), (26, 709730), (28, 659035), (35, 527228), (52, 354865), (65, 283892), (70, 263614), (91, 202780), (130, 141946), (140, 131807), (182, 101390), (260, 70973), (364, 50695), (455, 40556), (910, 20278), (1820, 10139)]