31255020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1951}}^1$

素因数の和:2055

約数の個数: 72

約数和(自身を含む): 95921280

約数和(自身を除く): 64666260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 1951, 2670, 3204, 3902, 4005, 5340, 5853, 7804, 8010, 9755, 11706, 16020, 17559, 19510, 23412, 29265, 35118, 39020, 58530, 70236, 87795, 117060, 173639, 175590, 347278, 351180, 520917, 694556, 868195, 1041834, 1562751, 1736390, 2083668, 2604585, 3125502, 3472780, 5209170, 6251004, 7813755, 10418340, 15627510, 31255020]

約数ペア:

[(1, 31255020), (2, 15627510), (3, 10418340), (4, 7813755), (5, 6251004), (6, 5209170), (9, 3472780), (10, 3125502), (12, 2604585), (15, 2083668), (18, 1736390), (20, 1562751), (30, 1041834), (36, 868195), (45, 694556), (60, 520917), (89, 351180), (90, 347278), (178, 175590), (180, 173639), (267, 117060), (356, 87795), (445, 70236), (534, 58530), (801, 39020), (890, 35118), (1068, 29265), (1335, 23412), (1602, 19510), (1780, 17559), (1951, 16020), (2670, 11706), (3204, 9755), (3902, 8010), (4005, 7804), (5340, 5853)]