31108920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{653}}^1$

素因数の和:1064

約数の個数: 64

約数和(自身を含む): 93705120

約数和(自身を除く): 62596200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 653, 794, 1191, 1306, 1588, 1959, 1985, 2382, 2612, 3176, 3265, 3918, 3970, 4764, 5224, 5955, 6530, 7836, 7940, 9528, 9795, 11910, 13060, 15672, 15880, 19590, 23820, 26120, 39180, 47640, 78360, 259241, 518482, 777723, 1036964, 1296205, 1555446, 2073928, 2592410, 3110892, 3888615, 5184820, 6221784, 7777230, 10369640, 15554460, 31108920]

約数ペア:

[(1, 31108920), (2, 15554460), (3, 10369640), (4, 7777230), (5, 6221784), (6, 5184820), (8, 3888615), (10, 3110892), (12, 2592410), (15, 2073928), (20, 1555446), (24, 1296205), (30, 1036964), (40, 777723), (60, 518482), (120, 259241), (397, 78360), (653, 47640), (794, 39180), (1191, 26120), (1306, 23820), (1588, 19590), (1959, 15880), (1985, 15672), (2382, 13060), (2612, 11910), (3176, 9795), (3265, 9528), (3918, 7940), (3970, 7836), (4764, 6530), (5224, 5955)]