197710020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2609}}^1$

素因数の和:3045

約数の個数: 72

約数和(自身を含む): 601375320

約数和(自身を除く): 403665300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 842, 1263, 1684, 2105, 2526, 2609, 3789, 4210, 5052, 5218, 6315, 7578, 7827, 8420, 10436, 12630, 13045, 15156, 15654, 18945, 23481, 25260, 26090, 31308, 37890, 39135, 46962, 52180, 75780, 78270, 93924, 117405, 156540, 234810, 469620, 1098389, 2196778, 3295167, 4393556, 5491945, 6590334, 9885501, 10983890, 13180668, 16475835, 19771002, 21967780, 32951670, 39542004, 49427505, 65903340, 98855010, 197710020]

約数ペア:

[(1, 197710020), (2, 98855010), (3, 65903340), (4, 49427505), (5, 39542004), (6, 32951670), (9, 21967780), (10, 19771002), (12, 16475835), (15, 13180668), (18, 10983890), (20, 9885501), (30, 6590334), (36, 5491945), (45, 4393556), (60, 3295167), (90, 2196778), (180, 1098389), (421, 469620), (842, 234810), (1263, 156540), (1684, 117405), (2105, 93924), (2526, 78270), (2609, 75780), (3789, 52180), (4210, 46962), (5052, 39135), (5218, 37890), (6315, 31308), (7578, 26090), (7827, 25260), (8420, 23481), (10436, 18945), (12630, 15654), (13045, 15156)]