20371500

素因数分解:

$2^2\times 3^4\times 5^3\times {\mathrm{503}}^1$

素因数の和:534

約数の個数: 120

約数和(自身を含む): 66594528

約数和(自身を除く): 46223028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 125, 135, 150, 162, 180, 225, 250, 270, 300, 324, 375, 405, 450, 500, 503, 540, 675, 750, 810, 900, 1006, 1125, 1350, 1500, 1509, 1620, 2012, 2025, 2250, 2515, 2700, 3018, 3375, 4050, 4500, 4527, 5030, 6036, 6750, 7545, 8100, 9054, 10060, 10125, 12575, 13500, 13581, 15090, 18108, 20250, 22635, 25150, 27162, 30180, 37725, 40500, 40743, 45270, 50300, 54324, 62875, 67905, 75450, 81486, 90540, 113175, 125750, 135810, 150900, 162972, 188625, 203715, 226350, 251500, 271620, 339525, 377250, 407430, 452700, 565875, 679050, 754500, 814860, 1018575, 1131750, 1358100, 1697625, 2037150, 2263500, 3395250, 4074300, 5092875, 6790500, 10185750, 20371500]

約数ペア:

[(1, 20371500), (2, 10185750), (3, 6790500), (4, 5092875), (5, 4074300), (6, 3395250), (9, 2263500), (10, 2037150), (12, 1697625), (15, 1358100), (18, 1131750), (20, 1018575), (25, 814860), (27, 754500), (30, 679050), (36, 565875), (45, 452700), (50, 407430), (54, 377250), (60, 339525), (75, 271620), (81, 251500), (90, 226350), (100, 203715), (108, 188625), (125, 162972), (135, 150900), (150, 135810), (162, 125750), (180, 113175), (225, 90540), (250, 81486), (270, 75450), (300, 67905), (324, 62875), (375, 54324), (405, 50300), (450, 45270), (500, 40743), (503, 40500), (540, 37725), (675, 30180), (750, 27162), (810, 25150), (900, 22635), (1006, 20250), (1125, 18108), (1350, 15090), (1500, 13581), (1509, 13500), (1620, 12575), (2012, 10125), (2025, 10060), (2250, 9054), (2515, 8100), (2700, 7545), (3018, 6750), (3375, 6036), (4050, 5030), (4500, 4527)]