21960360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61001}}^1$

素因数の和:61018

約数の個数: 48

約数和(自身を含む): 71372340

約数和(自身を除く): 49411980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 61001, 122002, 183003, 244004, 305005, 366006, 488008, 549009, 610010, 732012, 915015, 1098018, 1220020, 1464024, 1830030, 2196036, 2440040, 2745045, 3660060, 4392072, 5490090, 7320120, 10980180, 21960360]

約数ペア:

[(1, 21960360), (2, 10980180), (3, 7320120), (4, 5490090), (5, 4392072), (6, 3660060), (8, 2745045), (9, 2440040), (10, 2196036), (12, 1830030), (15, 1464024), (18, 1220020), (20, 1098018), (24, 915015), (30, 732012), (36, 610010), (40, 549009), (45, 488008), (60, 366006), (72, 305005), (90, 244004), (120, 183003), (180, 122002), (360, 61001)]