18502920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 60840000

約数和(自身を除く): 42337080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 103, 120, 180, 206, 309, 360, 412, 499, 515, 618, 824, 927, 998, 1030, 1236, 1497, 1545, 1854, 1996, 2060, 2472, 2495, 2994, 3090, 3708, 3992, 4120, 4491, 4635, 4990, 5988, 6180, 7416, 7485, 8982, 9270, 9980, 11976, 12360, 14970, 17964, 18540, 19960, 22455, 29940, 35928, 37080, 44910, 51397, 59880, 89820, 102794, 154191, 179640, 205588, 256985, 308382, 411176, 462573, 513970, 616764, 770955, 925146, 1027940, 1233528, 1541910, 1850292, 2055880, 2312865, 3083820, 3700584, 4625730, 6167640, 9251460, 18502920]

約数ペア:

[(1, 18502920), (2, 9251460), (3, 6167640), (4, 4625730), (5, 3700584), (6, 3083820), (8, 2312865), (9, 2055880), (10, 1850292), (12, 1541910), (15, 1233528), (18, 1027940), (20, 925146), (24, 770955), (30, 616764), (36, 513970), (40, 462573), (45, 411176), (60, 308382), (72, 256985), (90, 205588), (103, 179640), (120, 154191), (180, 102794), (206, 89820), (309, 59880), (360, 51397), (412, 44910), (499, 37080), (515, 35928), (618, 29940), (824, 22455), (927, 19960), (998, 18540), (1030, 17964), (1236, 14970), (1497, 12360), (1545, 11976), (1854, 9980), (1996, 9270), (2060, 8982), (2472, 7485), (2495, 7416), (2994, 6180), (3090, 5988), (3708, 4990), (3992, 4635), (4120, 4491)]