64278901760

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{404983}}^1$

素因数の和:405039

約数の個数: 88

約数和(自身を含む): 159168431616

約数和(自身を除く): 94889529856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5120, 7936, 9920, 15872, 19840, 31744, 39680, 79360, 158720, 404983, 809966, 1619932, 2024915, 3239864, 4049830, 6479728, 8099660, 12554473, 12959456, 16199320, 25108946, 25918912, 32398640, 50217892, 51837824, 62772365, 64797280, 100435784, 103675648, 125544730, 129594560, 200871568, 207351296, 251089460, 259189120, 401743136, 414702592, 502178920, 518378240, 803486272, 1004357840, 1036756480, 1606972544, 2008715680, 2073512960, 3213945088, 4017431360, 6427890176, 8034862720, 12855780352, 16069725440, 32139450880, 64278901760]

約数ペア:

[(1, 64278901760), (2, 32139450880), (4, 16069725440), (5, 12855780352), (8, 8034862720), (10, 6427890176), (16, 4017431360), (20, 3213945088), (31, 2073512960), (32, 2008715680), (40, 1606972544), (62, 1036756480), (64, 1004357840), (80, 803486272), (124, 518378240), (128, 502178920), (155, 414702592), (160, 401743136), (248, 259189120), (256, 251089460), (310, 207351296), (320, 200871568), (496, 129594560), (512, 125544730), (620, 103675648), (640, 100435784), (992, 64797280), (1024, 62772365), (1240, 51837824), (1280, 50217892), (1984, 32398640), (2480, 25918912), (2560, 25108946), (3968, 16199320), (4960, 12959456), (5120, 12554473), (7936, 8099660), (9920, 6479728), (15872, 4049830), (19840, 3239864), (31744, 2024915), (39680, 1619932), (79360, 809966), (158720, 404983)]