395980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1523}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 896112

約数和(自身を除く): 500132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1523, 3046, 6092, 7615, 15230, 19799, 30460, 39598, 79196, 98995, 197990, 395980]

約数ペア:

[(1, 395980), (2, 197990), (4, 98995), (5, 79196), (10, 39598), (13, 30460), (20, 19799), (26, 15230), (52, 7615), (65, 6092), (130, 3046), (260, 1523)]