81962770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 162518400

約数和(自身を除く): 80555630

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 89, 95, 131, 178, 185, 190, 262, 370, 445, 655, 703, 890, 1310, 1406, 1691, 2489, 3293, 3382, 3515, 4847, 4978, 6586, 7030, 8455, 9694, 11659, 12445, 16465, 16910, 23318, 24235, 24890, 32930, 48470, 58295, 62567, 92093, 116590, 125134, 184186, 221521, 312835, 431383, 443042, 460465, 625670, 862766, 920930, 1107605, 2156915, 2215210, 4313830, 8196277, 16392554, 40981385, 81962770]

約数ペア:

[(1, 81962770), (2, 40981385), (5, 16392554), (10, 8196277), (19, 4313830), (37, 2215210), (38, 2156915), (74, 1107605), (89, 920930), (95, 862766), (131, 625670), (178, 460465), (185, 443042), (190, 431383), (262, 312835), (370, 221521), (445, 184186), (655, 125134), (703, 116590), (890, 92093), (1310, 62567), (1406, 58295), (1691, 48470), (2489, 32930), (3293, 24890), (3382, 24235), (3515, 23318), (4847, 16910), (4978, 16465), (6586, 12445), (7030, 11659), (8455, 9694)]