8640180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2125

約数の個数: 72

約数和(自身を含む): 27361152

約数和(自身を除く): 18720972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 2087, 4140, 4174, 6261, 8348, 10435, 12522, 18783, 20870, 25044, 31305, 37566, 41740, 48001, 62610, 75132, 93915, 96002, 125220, 144003, 187830, 192004, 240005, 288006, 375660, 432009, 480010, 576012, 720015, 864018, 960020, 1440030, 1728036, 2160045, 2880060, 4320090, 8640180]

約数ペア:

[(1, 8640180), (2, 4320090), (3, 2880060), (4, 2160045), (5, 1728036), (6, 1440030), (9, 960020), (10, 864018), (12, 720015), (15, 576012), (18, 480010), (20, 432009), (23, 375660), (30, 288006), (36, 240005), (45, 192004), (46, 187830), (60, 144003), (69, 125220), (90, 96002), (92, 93915), (115, 75132), (138, 62610), (180, 48001), (207, 41740), (230, 37566), (276, 31305), (345, 25044), (414, 20870), (460, 18783), (690, 12522), (828, 10435), (1035, 8348), (1380, 6261), (2070, 4174), (2087, 4140)]