123581520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{171641}}^1$

素因数の和:171660

約数の個数: 60

約数和(自身を含む): 415030356

約数和(自身を除く): 291448836

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, 171641, 343282, 514923, 686564, 858205, 1029846, 1373128, 1544769, 1716410, 2059692, 2574615, 2746256, 3089538, 3432820, 4119384, 5149230, 6179076, 6865640, 7723845, 8238768, 10298460, 12358152, 13731280, 15447690, 20596920, 24716304, 30895380, 41193840, 61790760, 123581520]

約数ペア:

[(1, 123581520), (2, 61790760), (3, 41193840), (4, 30895380), (5, 24716304), (6, 20596920), (8, 15447690), (9, 13731280), (10, 12358152), (12, 10298460), (15, 8238768), (16, 7723845), (18, 6865640), (20, 6179076), (24, 5149230), (30, 4119384), (36, 3432820), (40, 3089538), (45, 2746256), (48, 2574615), (60, 2059692), (72, 1716410), (80, 1544769), (90, 1373128), (120, 1029846), (144, 858205), (180, 686564), (240, 514923), (360, 343282), (720, 171641)]