8728174

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 72

約数和(自身を含む): 18024768

約数和(自身を除く): 9296594

約数列:

[1, 2, 7, 13, 14, 17, 26, 31, 34, 49, 62, 91, 98, 119, 169, 182, 217, 221, 238, 338, 403, 434, 442, 527, 637, 806, 833, 1054, 1183, 1274, 1519, 1547, 1666, 2366, 2821, 2873, 3038, 3094, 3689, 5239, 5642, 5746, 6851, 7378, 8281, 10478, 10829, 13702, 16562, 19747, 20111, 21658, 25823, 36673, 39494, 40222, 47957, 51646, 73346, 89063, 95914, 140777, 178126, 256711, 281554, 335699, 513422, 623441, 671398, 1246882, 4364087, 8728174]

約数ペア:

[(1, 8728174), (2, 4364087), (7, 1246882), (13, 671398), (14, 623441), (17, 513422), (26, 335699), (31, 281554), (34, 256711), (49, 178126), (62, 140777), (91, 95914), (98, 89063), (119, 73346), (169, 51646), (182, 47957), (217, 40222), (221, 39494), (238, 36673), (338, 25823), (403, 21658), (434, 20111), (442, 19747), (527, 16562), (637, 13702), (806, 10829), (833, 10478), (1054, 8281), (1183, 7378), (1274, 6851), (1519, 5746), (1547, 5642), (1666, 5239), (2366, 3689), (2821, 3094), (2873, 3038)]