681758560

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{86959}}^1$

素因数の和:86988

約数の個数: 72

約数和(自身を含む): 1873640160

約数和(自身を除く): 1191881600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 86959, 173918, 347836, 434795, 608713, 695672, 869590, 1217426, 1391344, 1739180, 2434852, 2782688, 3043565, 3478360, 4260991, 4869704, 6087130, 6956720, 8521982, 9739408, 12174260, 13913440, 17043964, 19478816, 21304955, 24348520, 34087928, 42609910, 48697040, 68175856, 85219820, 97394080, 136351712, 170439640, 340879280, 681758560]

約数ペア:

[(1, 681758560), (2, 340879280), (4, 170439640), (5, 136351712), (7, 97394080), (8, 85219820), (10, 68175856), (14, 48697040), (16, 42609910), (20, 34087928), (28, 24348520), (32, 21304955), (35, 19478816), (40, 17043964), (49, 13913440), (56, 12174260), (70, 9739408), (80, 8521982), (98, 6956720), (112, 6087130), (140, 4869704), (160, 4260991), (196, 3478360), (224, 3043565), (245, 2782688), (280, 2434852), (392, 1739180), (490, 1391344), (560, 1217426), (784, 869590), (980, 695672), (1120, 608713), (1568, 434795), (1960, 347836), (3920, 173918), (7840, 86959)]