8131140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 24897600

約数和(自身を除く): 16766460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 227, 398, 454, 597, 681, 796, 908, 995, 1135, 1194, 1362, 1791, 1990, 2043, 2270, 2388, 2724, 2985, 3405, 3582, 3980, 4086, 4540, 5970, 6810, 7164, 8172, 8955, 10215, 11940, 13620, 17910, 20430, 35820, 40860, 45173, 90346, 135519, 180692, 225865, 271038, 406557, 451730, 542076, 677595, 813114, 903460, 1355190, 1626228, 2032785, 2710380, 4065570, 8131140]

約数ペア:

[(1, 8131140), (2, 4065570), (3, 2710380), (4, 2032785), (5, 1626228), (6, 1355190), (9, 903460), (10, 813114), (12, 677595), (15, 542076), (18, 451730), (20, 406557), (30, 271038), (36, 225865), (45, 180692), (60, 135519), (90, 90346), (180, 45173), (199, 40860), (227, 35820), (398, 20430), (454, 17910), (597, 13620), (681, 11940), (796, 10215), (908, 8955), (995, 8172), (1135, 7164), (1194, 6810), (1362, 5970), (1791, 4540), (1990, 4086), (2043, 3980), (2270, 3582), (2388, 3405), (2724, 2985)]