85671680

素因数分解:

$2^8\times 5^1\times {\mathrm{66931}}^1$

素因数の和:66952

約数の個数: 36

約数和(自身を含む): 205213512

約数和(自身を除く): 119541832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 66931, 133862, 267724, 334655, 535448, 669310, 1070896, 1338620, 2141792, 2677240, 4283584, 5354480, 8567168, 10708960, 17134336, 21417920, 42835840, 85671680]

約数ペア:

[(1, 85671680), (2, 42835840), (4, 21417920), (5, 17134336), (8, 10708960), (10, 8567168), (16, 5354480), (20, 4283584), (32, 2677240), (40, 2141792), (64, 1338620), (80, 1070896), (128, 669310), (160, 535448), (256, 334655), (320, 267724), (640, 133862), (1280, 66931)]