81505600

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^2\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 126

約数和(自身を含む): 220968062

約数和(自身を除く): 139462462

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 121, 160, 176, 200, 220, 242, 275, 320, 352, 400, 421, 440, 484, 550, 605, 704, 800, 842, 880, 968, 1100, 1210, 1600, 1684, 1760, 1936, 2105, 2200, 2420, 3025, 3368, 3520, 3872, 4210, 4400, 4631, 4840, 6050, 6736, 7744, 8420, 8800, 9262, 9680, 10525, 12100, 13472, 16840, 17600, 18524, 19360, 21050, 23155, 24200, 26944, 33680, 37048, 38720, 42100, 46310, 48400, 50941, 67360, 74096, 84200, 92620, 96800, 101882, 115775, 134720, 148192, 168400, 185240, 193600, 203764, 231550, 254705, 296384, 336800, 370480, 407528, 463100, 509410, 673600, 740960, 815056, 926200, 1018820, 1273525, 1481920, 1630112, 1852400, 2037640, 2547050, 3260224, 3704800, 4075280, 5094100, 7409600, 8150560, 10188200, 16301120, 20376400, 40752800, 81505600]

約数ペア:

[(1, 81505600), (2, 40752800), (4, 20376400), (5, 16301120), (8, 10188200), (10, 8150560), (11, 7409600), (16, 5094100), (20, 4075280), (22, 3704800), (25, 3260224), (32, 2547050), (40, 2037640), (44, 1852400), (50, 1630112), (55, 1481920), (64, 1273525), (80, 1018820), (88, 926200), (100, 815056), (110, 740960), (121, 673600), (160, 509410), (176, 463100), (200, 407528), (220, 370480), (242, 336800), (275, 296384), (320, 254705), (352, 231550), (400, 203764), (421, 193600), (440, 185240), (484, 168400), (550, 148192), (605, 134720), (704, 115775), (800, 101882), (842, 96800), (880, 92620), (968, 84200), (1100, 74096), (1210, 67360), (1600, 50941), (1684, 48400), (1760, 46310), (1936, 42100), (2105, 38720), (2200, 37048), (2420, 33680), (3025, 26944), (3368, 24200), (3520, 23155), (3872, 21050), (4210, 19360), (4400, 18524), (4631, 17600), (4840, 16840), (6050, 13472), (6736, 12100), (7744, 10525), (8420, 9680), (8800, 9262)]