66866014720

素因数分解:

$2^9\times 5^1\times {\mathrm{313}}^1\times {\mathrm{83449}}^1$

素因数の和:83785

約数の個数: 80

約数和(自身を含む): 160835855400

約数和(自身を除く): 93969840680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 313, 320, 512, 626, 640, 1252, 1280, 1565, 2504, 2560, 3130, 5008, 6260, 10016, 12520, 20032, 25040, 40064, 50080, 80128, 83449, 100160, 160256, 166898, 200320, 333796, 400640, 417245, 667592, 801280, 834490, 1335184, 1668980, 2670368, 3337960, 5340736, 6675920, 10681472, 13351840, 21362944, 26119537, 26703680, 42725888, 52239074, 53407360, 104478148, 106814720, 130597685, 208956296, 213629440, 261195370, 417912592, 522390740, 835825184, 1044781480, 1671650368, 2089562960, 3343300736, 4179125920, 6686601472, 8358251840, 13373202944, 16716503680, 33433007360, 66866014720]

約数ペア:

[(1, 66866014720), (2, 33433007360), (4, 16716503680), (5, 13373202944), (8, 8358251840), (10, 6686601472), (16, 4179125920), (20, 3343300736), (32, 2089562960), (40, 1671650368), (64, 1044781480), (80, 835825184), (128, 522390740), (160, 417912592), (256, 261195370), (313, 213629440), (320, 208956296), (512, 130597685), (626, 106814720), (640, 104478148), (1252, 53407360), (1280, 52239074), (1565, 42725888), (2504, 26703680), (2560, 26119537), (3130, 21362944), (5008, 13351840), (6260, 10681472), (10016, 6675920), (12520, 5340736), (20032, 3337960), (25040, 2670368), (40064, 1668980), (50080, 1335184), (80128, 834490), (83449, 801280), (100160, 667592), (160256, 417245), (166898, 400640), (200320, 333796)]