128680468

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 273490560

約数和(自身を除く): 144810092

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 67, 82, 98, 134, 164, 196, 239, 268, 287, 469, 478, 574, 938, 956, 1148, 1673, 1876, 2009, 2747, 3283, 3346, 4018, 5494, 6566, 6692, 8036, 9799, 10988, 11711, 13132, 16013, 19229, 19598, 23422, 32026, 38458, 39196, 46844, 64052, 68593, 76916, 112091, 134603, 137186, 224182, 269206, 274372, 448364, 480151, 538412, 656533, 784637, 960302, 1313066, 1569274, 1920604, 2626132, 3138548, 4595731, 9191462, 18382924, 32170117, 64340234, 128680468]

約数ペア:

[(1, 128680468), (2, 64340234), (4, 32170117), (7, 18382924), (14, 9191462), (28, 4595731), (41, 3138548), (49, 2626132), (67, 1920604), (82, 1569274), (98, 1313066), (134, 960302), (164, 784637), (196, 656533), (239, 538412), (268, 480151), (287, 448364), (469, 274372), (478, 269206), (574, 224182), (938, 137186), (956, 134603), (1148, 112091), (1673, 76916), (1876, 68593), (2009, 64052), (2747, 46844), (3283, 39196), (3346, 38458), (4018, 32026), (5494, 23422), (6566, 19598), (6692, 19229), (8036, 16013), (9799, 13132), (10988, 11711)]