81456900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:594

約数の個数: 144

約数和(自身を含む): 273315840

約数和(自身を除く): 191858940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 79, 84, 100, 105, 140, 150, 158, 175, 210, 237, 300, 316, 350, 395, 420, 474, 491, 525, 553, 700, 790, 948, 982, 1050, 1106, 1185, 1473, 1580, 1659, 1964, 1975, 2100, 2212, 2370, 2455, 2765, 2946, 3318, 3437, 3950, 4740, 4910, 5530, 5892, 5925, 6636, 6874, 7365, 7900, 8295, 9820, 10311, 11060, 11850, 12275, 13748, 13825, 14730, 16590, 17185, 20622, 23700, 24550, 27650, 29460, 33180, 34370, 36825, 38789, 41244, 41475, 49100, 51555, 55300, 68740, 73650, 77578, 82950, 85925, 103110, 116367, 147300, 155156, 165900, 171850, 193945, 206220, 232734, 257775, 271523, 343700, 387890, 465468, 515550, 543046, 581835, 775780, 814569, 969725, 1031100, 1086092, 1163670, 1357615, 1629138, 1939450, 2327340, 2715230, 2909175, 3258276, 3878900, 4072845, 5430460, 5818350, 6788075, 8145690, 11636700, 13576150, 16291380, 20364225, 27152300, 40728450, 81456900]

約数ペア:

[(1, 81456900), (2, 40728450), (3, 27152300), (4, 20364225), (5, 16291380), (6, 13576150), (7, 11636700), (10, 8145690), (12, 6788075), (14, 5818350), (15, 5430460), (20, 4072845), (21, 3878900), (25, 3258276), (28, 2909175), (30, 2715230), (35, 2327340), (42, 1939450), (50, 1629138), (60, 1357615), (70, 1163670), (75, 1086092), (79, 1031100), (84, 969725), (100, 814569), (105, 775780), (140, 581835), (150, 543046), (158, 515550), (175, 465468), (210, 387890), (237, 343700), (300, 271523), (316, 257775), (350, 232734), (395, 206220), (420, 193945), (474, 171850), (491, 165900), (525, 155156), (553, 147300), (700, 116367), (790, 103110), (948, 85925), (982, 82950), (1050, 77578), (1106, 73650), (1185, 68740), (1473, 55300), (1580, 51555), (1659, 49100), (1964, 41475), (1975, 41244), (2100, 38789), (2212, 36825), (2370, 34370), (2455, 33180), (2765, 29460), (2946, 27650), (3318, 24550), (3437, 23700), (3950, 20622), (4740, 17185), (4910, 16590), (5530, 14730), (5892, 13825), (5925, 13748), (6636, 12275), (6874, 11850), (7365, 11060), (7900, 10311), (8295, 9820)]