281020860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{520409}}^1$

素因数の和:520427

約数の個数: 48

約数和(自身を含む): 874288800

約数和(自身を除く): 593267940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 520409, 1040818, 1561227, 2081636, 2602045, 3122454, 4683681, 5204090, 6244908, 7806135, 9367362, 10408180, 14051043, 15612270, 18734724, 23418405, 28102086, 31224540, 46836810, 56204172, 70255215, 93673620, 140510430, 281020860]

約数ペア:

[(1, 281020860), (2, 140510430), (3, 93673620), (4, 70255215), (5, 56204172), (6, 46836810), (9, 31224540), (10, 28102086), (12, 23418405), (15, 18734724), (18, 15612270), (20, 14051043), (27, 10408180), (30, 9367362), (36, 7806135), (45, 6244908), (54, 5204090), (60, 4683681), (90, 3122454), (108, 2602045), (135, 2081636), (180, 1561227), (270, 1040818), (540, 520409)]