9970020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:554

約数の個数: 96

約数和(自身を含む): 31920000

約数和(自身を除く): 21949980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 499, 540, 555, 666, 740, 998, 999, 1110, 1332, 1497, 1665, 1996, 1998, 2220, 2495, 2994, 3330, 3996, 4491, 4990, 4995, 5988, 6660, 7485, 8982, 9980, 9990, 13473, 14970, 17964, 18463, 19980, 22455, 26946, 29940, 36926, 44910, 53892, 55389, 67365, 73852, 89820, 92315, 110778, 134730, 166167, 184630, 221556, 269460, 276945, 332334, 369260, 498501, 553890, 664668, 830835, 997002, 1107780, 1661670, 1994004, 2492505, 3323340, 4985010, 9970020]

約数ペア:

[(1, 9970020), (2, 4985010), (3, 3323340), (4, 2492505), (5, 1994004), (6, 1661670), (9, 1107780), (10, 997002), (12, 830835), (15, 664668), (18, 553890), (20, 498501), (27, 369260), (30, 332334), (36, 276945), (37, 269460), (45, 221556), (54, 184630), (60, 166167), (74, 134730), (90, 110778), (108, 92315), (111, 89820), (135, 73852), (148, 67365), (180, 55389), (185, 53892), (222, 44910), (270, 36926), (333, 29940), (370, 26946), (444, 22455), (499, 19980), (540, 18463), (555, 17964), (666, 14970), (740, 13473), (998, 9990), (999, 9980), (1110, 8982), (1332, 7485), (1497, 6660), (1665, 5988), (1996, 4995), (1998, 4990), (2220, 4491), (2495, 3996), (2994, 3330)]