16860940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 37939104

約数和(自身を除く): 21078164

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 491, 505, 982, 1010, 1717, 1964, 2020, 2455, 3434, 4910, 6868, 8347, 8585, 9820, 16694, 17170, 33388, 34340, 41735, 49591, 83470, 99182, 166940, 198364, 247955, 495910, 843047, 991820, 1686094, 3372188, 4215235, 8430470, 16860940]

約数ペア:

[(1, 16860940), (2, 8430470), (4, 4215235), (5, 3372188), (10, 1686094), (17, 991820), (20, 843047), (34, 495910), (68, 247955), (85, 198364), (101, 166940), (170, 99182), (202, 83470), (340, 49591), (404, 41735), (491, 34340), (505, 33388), (982, 17170), (1010, 16694), (1717, 9820), (1964, 8585), (2020, 8347), (2455, 6868), (3434, 4910)]