31211880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 128

約数和(自身を含む): 108691200

約数和(自身を除く): 77479320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 509, 511, 584, 730, 840, 876, 1018, 1022, 1095, 1460, 1527, 1533, 1752, 2036, 2044, 2190, 2545, 2555, 2920, 3054, 3066, 3563, 4072, 4088, 4380, 5090, 5110, 6108, 6132, 7126, 7635, 7665, 8760, 10180, 10220, 10689, 12216, 12264, 14252, 15270, 15330, 17815, 20360, 20440, 21378, 28504, 30540, 30660, 35630, 37157, 42756, 53445, 61080, 61320, 71260, 74314, 85512, 106890, 111471, 142520, 148628, 185785, 213780, 222942, 260099, 297256, 371570, 427560, 445884, 520198, 557355, 743140, 780297, 891768, 1040396, 1114710, 1300495, 1486280, 1560594, 2080792, 2229420, 2600990, 3121188, 3901485, 4458840, 5201980, 6242376, 7802970, 10403960, 15605940, 31211880]

約数ペア:

[(1, 31211880), (2, 15605940), (3, 10403960), (4, 7802970), (5, 6242376), (6, 5201980), (7, 4458840), (8, 3901485), (10, 3121188), (12, 2600990), (14, 2229420), (15, 2080792), (20, 1560594), (21, 1486280), (24, 1300495), (28, 1114710), (30, 1040396), (35, 891768), (40, 780297), (42, 743140), (56, 557355), (60, 520198), (70, 445884), (73, 427560), (84, 371570), (105, 297256), (120, 260099), (140, 222942), (146, 213780), (168, 185785), (210, 148628), (219, 142520), (280, 111471), (292, 106890), (365, 85512), (420, 74314), (438, 71260), (509, 61320), (511, 61080), (584, 53445), (730, 42756), (840, 37157), (876, 35630), (1018, 30660), (1022, 30540), (1095, 28504), (1460, 21378), (1527, 20440), (1533, 20360), (1752, 17815), (2036, 15330), (2044, 15270), (2190, 14252), (2545, 12264), (2555, 12216), (2920, 10689), (3054, 10220), (3066, 10180), (3563, 8760), (4072, 7665), (4088, 7635), (4380, 7126), (5090, 6132), (5110, 6108)]