2505720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 9100800

約数和(自身を除く): 6595080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 157, 168, 190, 210, 228, 266, 280, 285, 314, 380, 399, 420, 456, 471, 532, 570, 628, 665, 760, 785, 798, 840, 942, 1064, 1099, 1140, 1256, 1330, 1570, 1596, 1884, 1995, 2198, 2280, 2355, 2660, 2983, 3140, 3192, 3297, 3768, 3990, 4396, 4710, 5320, 5495, 5966, 6280, 6594, 7980, 8792, 8949, 9420, 10990, 11932, 13188, 14915, 15960, 16485, 17898, 18840, 20881, 21980, 23864, 26376, 29830, 32970, 35796, 41762, 43960, 44745, 59660, 62643, 65940, 71592, 83524, 89490, 104405, 119320, 125286, 131880, 167048, 178980, 208810, 250572, 313215, 357960, 417620, 501144, 626430, 835240, 1252860, 2505720]

約数ペア:

[(1, 2505720), (2, 1252860), (3, 835240), (4, 626430), (5, 501144), (6, 417620), (7, 357960), (8, 313215), (10, 250572), (12, 208810), (14, 178980), (15, 167048), (19, 131880), (20, 125286), (21, 119320), (24, 104405), (28, 89490), (30, 83524), (35, 71592), (38, 65940), (40, 62643), (42, 59660), (56, 44745), (57, 43960), (60, 41762), (70, 35796), (76, 32970), (84, 29830), (95, 26376), (105, 23864), (114, 21980), (120, 20881), (133, 18840), (140, 17898), (152, 16485), (157, 15960), (168, 14915), (190, 13188), (210, 11932), (228, 10990), (266, 9420), (280, 8949), (285, 8792), (314, 7980), (380, 6594), (399, 6280), (420, 5966), (456, 5495), (471, 5320), (532, 4710), (570, 4396), (628, 3990), (665, 3768), (760, 3297), (785, 3192), (798, 3140), (840, 2983), (942, 2660), (1064, 2355), (1099, 2280), (1140, 2198), (1256, 1995), (1330, 1884), (1570, 1596)]