31255560

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 118310400

約数和(自身を除く): 87054840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 79, 84, 90, 105, 120, 126, 140, 157, 158, 168, 180, 210, 237, 252, 280, 314, 315, 316, 360, 395, 420, 471, 474, 504, 553, 628, 630, 632, 711, 785, 790, 840, 942, 948, 1099, 1106, 1185, 1256, 1260, 1413, 1422, 1570, 1580, 1659, 1884, 1896, 2198, 2212, 2355, 2370, 2520, 2765, 2826, 2844, 3140, 3160, 3297, 3318, 3555, 3768, 4396, 4424, 4710, 4740, 4977, 5495, 5530, 5652, 5688, 6280, 6594, 6636, 7065, 7110, 8295, 8792, 9420, 9480, 9891, 9954, 10990, 11060, 11304, 12403, 13188, 13272, 14130, 14220, 16485, 16590, 18840, 19782, 19908, 21980, 22120, 24806, 24885, 26376, 28260, 28440, 32970, 33180, 37209, 39564, 39816, 43960, 49455, 49612, 49770, 56520, 62015, 65940, 66360, 74418, 79128, 86821, 98910, 99224, 99540, 111627, 124030, 131880, 148836, 173642, 186045, 197820, 199080, 223254, 248060, 260463, 297672, 347284, 372090, 395640, 434105, 446508, 496120, 520926, 558135, 694568, 744180, 781389, 868210, 893016, 1041852, 1116270, 1302315, 1488360, 1562778, 1736420, 2083704, 2232540, 2604630, 3125556, 3472840, 3906945, 4465080, 5209260, 6251112, 7813890, 10418520, 15627780, 31255560]

約数ペア:

[(1, 31255560), (2, 15627780), (3, 10418520), (4, 7813890), (5, 6251112), (6, 5209260), (7, 4465080), (8, 3906945), (9, 3472840), (10, 3125556), (12, 2604630), (14, 2232540), (15, 2083704), (18, 1736420), (20, 1562778), (21, 1488360), (24, 1302315), (28, 1116270), (30, 1041852), (35, 893016), (36, 868210), (40, 781389), (42, 744180), (45, 694568), (56, 558135), (60, 520926), (63, 496120), (70, 446508), (72, 434105), (79, 395640), (84, 372090), (90, 347284), (105, 297672), (120, 260463), (126, 248060), (140, 223254), (157, 199080), (158, 197820), (168, 186045), (180, 173642), (210, 148836), (237, 131880), (252, 124030), (280, 111627), (314, 99540), (315, 99224), (316, 98910), (360, 86821), (395, 79128), (420, 74418), (471, 66360), (474, 65940), (504, 62015), (553, 56520), (628, 49770), (630, 49612), (632, 49455), (711, 43960), (785, 39816), (790, 39564), (840, 37209), (942, 33180), (948, 32970), (1099, 28440), (1106, 28260), (1185, 26376), (1256, 24885), (1260, 24806), (1413, 22120), (1422, 21980), (1570, 19908), (1580, 19782), (1659, 18840), (1884, 16590), (1896, 16485), (2198, 14220), (2212, 14130), (2355, 13272), (2370, 13188), (2520, 12403), (2765, 11304), (2826, 11060), (2844, 10990), (3140, 9954), (3160, 9891), (3297, 9480), (3318, 9420), (3555, 8792), (3768, 8295), (4396, 7110), (4424, 7065), (4710, 6636), (4740, 6594), (4977, 6280), (5495, 5688), (5530, 5652)]