31458440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60497}}^1$

素因数の和:60521

約数の個数: 32

約数和(自身を含む): 76227480

約数和(自身を除く): 44769040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60497, 120994, 241988, 302485, 483976, 604970, 786461, 1209940, 1572922, 2419880, 3145844, 3932305, 6291688, 7864610, 15729220, 31458440]

約数ペア:

[(1, 31458440), (2, 15729220), (4, 7864610), (5, 6291688), (8, 3932305), (10, 3145844), (13, 2419880), (20, 1572922), (26, 1209940), (40, 786461), (52, 604970), (65, 483976), (104, 302485), (130, 241988), (260, 120994), (520, 60497)]