81384100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1022

約数の個数: 108

約数和(自身を含む): 217743876

約数和(自身を除く): 136359776

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 49, 50, 68, 70, 85, 98, 100, 119, 140, 170, 175, 196, 238, 245, 340, 350, 425, 476, 490, 595, 700, 833, 850, 977, 980, 1190, 1225, 1666, 1700, 1954, 2380, 2450, 2975, 3332, 3908, 4165, 4885, 4900, 5950, 6839, 8330, 9770, 11900, 13678, 16609, 16660, 19540, 20825, 24425, 27356, 33218, 34195, 41650, 47873, 48850, 66436, 68390, 83045, 83300, 95746, 97700, 116263, 136780, 166090, 170975, 191492, 232526, 239365, 332180, 341950, 415225, 465052, 478730, 581315, 683900, 813841, 830450, 957460, 1162630, 1196825, 1627682, 1660900, 2325260, 2393650, 2906575, 3255364, 4069205, 4787300, 5813150, 8138410, 11626300, 16276820, 20346025, 40692050, 81384100]

約数ペア:

[(1, 81384100), (2, 40692050), (4, 20346025), (5, 16276820), (7, 11626300), (10, 8138410), (14, 5813150), (17, 4787300), (20, 4069205), (25, 3255364), (28, 2906575), (34, 2393650), (35, 2325260), (49, 1660900), (50, 1627682), (68, 1196825), (70, 1162630), (85, 957460), (98, 830450), (100, 813841), (119, 683900), (140, 581315), (170, 478730), (175, 465052), (196, 415225), (238, 341950), (245, 332180), (340, 239365), (350, 232526), (425, 191492), (476, 170975), (490, 166090), (595, 136780), (700, 116263), (833, 97700), (850, 95746), (977, 83300), (980, 83045), (1190, 68390), (1225, 66436), (1666, 48850), (1700, 47873), (1954, 41650), (2380, 34195), (2450, 33218), (2975, 27356), (3332, 24425), (3908, 20825), (4165, 19540), (4885, 16660), (4900, 16609), (5950, 13678), (6839, 11900), (8330, 9770)]