77556780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61553}}^1$

素因数の和:61575

約数の個数: 72

約数和(自身を含む): 268867872

約数和(自身を除く): 191311092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 61553, 123106, 184659, 246212, 307765, 369318, 430871, 553977, 615530, 738636, 861742, 923295, 1107954, 1231060, 1292613, 1723484, 1846590, 2154355, 2215908, 2585226, 2769885, 3693180, 3877839, 4308710, 5170452, 5539770, 6463065, 7755678, 8617420, 11079540, 12926130, 15511356, 19389195, 25852260, 38778390, 77556780]

約数ペア:

[(1, 77556780), (2, 38778390), (3, 25852260), (4, 19389195), (5, 15511356), (6, 12926130), (7, 11079540), (9, 8617420), (10, 7755678), (12, 6463065), (14, 5539770), (15, 5170452), (18, 4308710), (20, 3877839), (21, 3693180), (28, 2769885), (30, 2585226), (35, 2215908), (36, 2154355), (42, 1846590), (45, 1723484), (60, 1292613), (63, 1231060), (70, 1107954), (84, 923295), (90, 861742), (105, 738636), (126, 615530), (140, 553977), (180, 430871), (210, 369318), (252, 307765), (315, 246212), (420, 184659), (630, 123106), (1260, 61553)]