81206970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208223}}^1$

素因数の和:208246

約数の個数: 32

約数和(自身を含む): 209889792

約数和(自身を除く): 128682822

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208223, 416446, 624669, 1041115, 1249338, 2082230, 2706899, 3123345, 5413798, 6246690, 8120697, 13534495, 16241394, 27068990, 40603485, 81206970]

約数ペア:

[(1, 81206970), (2, 40603485), (3, 27068990), (5, 16241394), (6, 13534495), (10, 8120697), (13, 6246690), (15, 5413798), (26, 3123345), (30, 2706899), (39, 2082230), (65, 1249338), (78, 1041115), (130, 624669), (195, 416446), (390, 208223)]