28875470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{571}}^1$

素因数の和:980

約数の個数: 32

約数和(自身を含む): 56216160

約数和(自身を除く): 27340690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 571, 778, 1142, 1945, 2855, 3890, 5057, 5710, 7423, 10114, 14846, 25285, 37115, 50570, 74230, 222119, 444238, 1110595, 2221190, 2887547, 5775094, 14437735, 28875470]

約数ペア:

[(1, 28875470), (2, 14437735), (5, 5775094), (10, 2887547), (13, 2221190), (26, 1110595), (65, 444238), (130, 222119), (389, 74230), (571, 50570), (778, 37115), (1142, 25285), (1945, 14846), (2855, 10114), (3890, 7423), (5057, 5710)]