80077600

素因数分解:

$2^5\times 5^2\times {\mathrm{199}}^1\times {\mathrm{503}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 196862400

約数和(自身を除く): 116784800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 199, 200, 398, 400, 503, 796, 800, 995, 1006, 1592, 1990, 2012, 2515, 3184, 3980, 4024, 4975, 5030, 6368, 7960, 8048, 9950, 10060, 12575, 15920, 16096, 19900, 20120, 25150, 31840, 39800, 40240, 50300, 79600, 80480, 100097, 100600, 159200, 200194, 201200, 400388, 402400, 500485, 800776, 1000970, 1601552, 2001940, 2502425, 3203104, 4003880, 5004850, 8007760, 10009700, 16015520, 20019400, 40038800, 80077600]

約数ペア:

[(1, 80077600), (2, 40038800), (4, 20019400), (5, 16015520), (8, 10009700), (10, 8007760), (16, 5004850), (20, 4003880), (25, 3203104), (32, 2502425), (40, 2001940), (50, 1601552), (80, 1000970), (100, 800776), (160, 500485), (199, 402400), (200, 400388), (398, 201200), (400, 200194), (503, 159200), (796, 100600), (800, 100097), (995, 80480), (1006, 79600), (1592, 50300), (1990, 40240), (2012, 39800), (2515, 31840), (3184, 25150), (3980, 20120), (4024, 19900), (4975, 16096), (5030, 15920), (6368, 12575), (7960, 10060), (8048, 9950)]