649064960

素因数分解:

$2^9\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3571}}^1$

素因数の和:3665

約数の個数: 80

約数和(自身を含む): 1578595392

約数和(自身を除く): 929530432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 1136, 1280, 1420, 2272, 2560, 2840, 3571, 4544, 5680, 7142, 9088, 11360, 14284, 17855, 18176, 22720, 28568, 35710, 36352, 45440, 57136, 71420, 90880, 114272, 142840, 181760, 228544, 253541, 285680, 457088, 507082, 571360, 914176, 1014164, 1142720, 1267705, 1828352, 2028328, 2285440, 2535410, 4056656, 4570880, 5070820, 8113312, 9141760, 10141640, 16226624, 20283280, 32453248, 40566560, 64906496, 81133120, 129812992, 162266240, 324532480, 649064960]

約数ペア:

[(1, 649064960), (2, 324532480), (4, 162266240), (5, 129812992), (8, 81133120), (10, 64906496), (16, 40566560), (20, 32453248), (32, 20283280), (40, 16226624), (64, 10141640), (71, 9141760), (80, 8113312), (128, 5070820), (142, 4570880), (160, 4056656), (256, 2535410), (284, 2285440), (320, 2028328), (355, 1828352), (512, 1267705), (568, 1142720), (640, 1014164), (710, 914176), (1136, 571360), (1280, 507082), (1420, 457088), (2272, 285680), (2560, 253541), (2840, 228544), (3571, 181760), (4544, 142840), (5680, 114272), (7142, 90880), (9088, 71420), (11360, 57136), (14284, 45440), (17855, 36352), (18176, 35710), (22720, 28568)]