31514980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{983}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 76043520

約数和(自身を除く): 44528540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 916, 983, 1145, 1603, 1966, 2290, 3206, 3932, 4580, 4915, 6412, 6881, 8015, 9830, 13762, 16030, 19660, 27524, 32060, 34405, 68810, 137620, 225107, 450214, 900428, 1125535, 1575749, 2251070, 3151498, 4502140, 6302996, 7878745, 15757490, 31514980]

約数ペア:

[(1, 31514980), (2, 15757490), (4, 7878745), (5, 6302996), (7, 4502140), (10, 3151498), (14, 2251070), (20, 1575749), (28, 1125535), (35, 900428), (70, 450214), (140, 225107), (229, 137620), (458, 68810), (916, 34405), (983, 32060), (1145, 27524), (1603, 19660), (1966, 16030), (2290, 13762), (3206, 9830), (3932, 8015), (4580, 6881), (4915, 6412)]