266661990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{709}}^1$

素因数の和:931

約数の個数: 128

約数和(自身を含む): 817920000

約数和(自身を除く): 551258010

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 199, 210, 270, 315, 378, 398, 597, 630, 709, 945, 995, 1194, 1393, 1418, 1791, 1890, 1990, 2127, 2786, 2985, 3545, 3582, 4179, 4254, 4963, 5373, 5970, 6381, 6965, 7090, 8358, 8955, 9926, 10635, 10746, 12537, 12762, 13930, 14889, 17910, 19143, 20895, 21270, 24815, 25074, 26865, 29778, 31905, 37611, 38286, 41790, 44667, 49630, 53730, 62685, 63810, 74445, 75222, 89334, 95715, 125370, 134001, 141091, 148890, 188055, 191430, 223335, 268002, 282182, 376110, 423273, 446670, 670005, 705455, 846546, 987637, 1269819, 1340010, 1410910, 1975274, 2116365, 2539638, 2962911, 3809457, 4232730, 4938185, 5925822, 6349095, 7618914, 8888733, 9876370, 12698190, 14814555, 17777466, 19047285, 26666199, 29629110, 38094570, 44443665, 53332398, 88887330, 133330995, 266661990]

約数ペア:

[(1, 266661990), (2, 133330995), (3, 88887330), (5, 53332398), (6, 44443665), (7, 38094570), (9, 29629110), (10, 26666199), (14, 19047285), (15, 17777466), (18, 14814555), (21, 12698190), (27, 9876370), (30, 8888733), (35, 7618914), (42, 6349095), (45, 5925822), (54, 4938185), (63, 4232730), (70, 3809457), (90, 2962911), (105, 2539638), (126, 2116365), (135, 1975274), (189, 1410910), (199, 1340010), (210, 1269819), (270, 987637), (315, 846546), (378, 705455), (398, 670005), (597, 446670), (630, 423273), (709, 376110), (945, 282182), (995, 268002), (1194, 223335), (1393, 191430), (1418, 188055), (1791, 148890), (1890, 141091), (1990, 134001), (2127, 125370), (2786, 95715), (2985, 89334), (3545, 75222), (3582, 74445), (4179, 63810), (4254, 62685), (4963, 53730), (5373, 49630), (5970, 44667), (6381, 41790), (6965, 38286), (7090, 37611), (8358, 31905), (8955, 29778), (9926, 26865), (10635, 25074), (10746, 24815), (12537, 21270), (12762, 20895), (13930, 19143), (14889, 17910)]