172872720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{240101}}^1$

素因数の和:240120

約数の個数: 60

約数和(自身を含む): 580566636

約数和(自身を除く): 407693916

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 240101, 480202, 720303, 960404, 1200505, 1440606, 1920808, 2160909, 2401010, 2881212, 3601515, 3841616, 4321818, 4802020, 5762424, 7203030, 8643636, 9604040, 10804545, 11524848, 14406060, 17287272, 19208080, 21609090, 28812120, 34574544, 43218180, 57624240, 86436360, 172872720]

約数ペア:

[(1, 172872720), (2, 86436360), (3, 57624240), (4, 43218180), (5, 34574544), (6, 28812120), (8, 21609090), (9, 19208080), (10, 17287272), (12, 14406060), (15, 11524848), (16, 10804545), (18, 9604040), (20, 8643636), (24, 7203030), (30, 5762424), (36, 4802020), (40, 4321818), (45, 3841616), (48, 3601515), (60, 2881212), (72, 2401010), (80, 2160909), (90, 1920808), (120, 1440606), (144, 1200505), (180, 960404), (240, 720303), (360, 480202), (720, 240101)]