81916020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5483}}^1$

素因数の和:5581

約数の個数: 72

約数和(自身を含む): 251518176

約数和(自身を除く): 169602156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 5483, 7470, 10966, 14940, 16449, 21932, 27415, 32898, 49347, 54830, 65796, 82245, 98694, 109660, 164490, 197388, 246735, 328980, 455089, 493470, 910178, 986940, 1365267, 1820356, 2275445, 2730534, 4095801, 4550890, 5461068, 6826335, 8191602, 9101780, 13652670, 16383204, 20479005, 27305340, 40958010, 81916020]

約数ペア:

[(1, 81916020), (2, 40958010), (3, 27305340), (4, 20479005), (5, 16383204), (6, 13652670), (9, 9101780), (10, 8191602), (12, 6826335), (15, 5461068), (18, 4550890), (20, 4095801), (30, 2730534), (36, 2275445), (45, 1820356), (60, 1365267), (83, 986940), (90, 910178), (166, 493470), (180, 455089), (249, 328980), (332, 246735), (415, 197388), (498, 164490), (747, 109660), (830, 98694), (996, 82245), (1245, 65796), (1494, 54830), (1660, 49347), (2490, 32898), (2988, 27415), (3735, 21932), (4980, 16449), (5483, 14940), (7470, 10966)]