18995820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{877}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 56199024

約数和(自身を除く): 37203204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 361, 380, 570, 722, 877, 1083, 1140, 1444, 1754, 1805, 2166, 2631, 3508, 3610, 4332, 4385, 5262, 5415, 7220, 8770, 10524, 10830, 13155, 16663, 17540, 21660, 26310, 33326, 49989, 52620, 66652, 83315, 99978, 166630, 199956, 249945, 316597, 333260, 499890, 633194, 949791, 999780, 1266388, 1582985, 1899582, 3165970, 3799164, 4748955, 6331940, 9497910, 18995820]

約数ペア:

[(1, 18995820), (2, 9497910), (3, 6331940), (4, 4748955), (5, 3799164), (6, 3165970), (10, 1899582), (12, 1582985), (15, 1266388), (19, 999780), (20, 949791), (30, 633194), (38, 499890), (57, 333260), (60, 316597), (76, 249945), (95, 199956), (114, 166630), (190, 99978), (228, 83315), (285, 66652), (361, 52620), (380, 49989), (570, 33326), (722, 26310), (877, 21660), (1083, 17540), (1140, 16663), (1444, 13155), (1754, 10830), (1805, 10524), (2166, 8770), (2631, 7220), (3508, 5415), (3610, 5262), (4332, 4385)]