1277620000

素因数分解:

$2^5\times 5^4\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:660

約数の個数: 120

約数和(自身を含む): 3174183936

約数和(自身を除く): 1896563936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 127, 160, 200, 250, 254, 400, 500, 503, 508, 625, 635, 800, 1000, 1006, 1016, 1250, 1270, 2000, 2012, 2032, 2500, 2515, 2540, 3175, 4000, 4024, 4064, 5000, 5030, 5080, 6350, 8048, 10000, 10060, 10160, 12575, 12700, 15875, 16096, 20000, 20120, 20320, 25150, 25400, 31750, 40240, 50300, 50800, 62875, 63500, 63881, 79375, 80480, 100600, 101600, 125750, 127000, 127762, 158750, 201200, 251500, 254000, 255524, 314375, 317500, 319405, 402400, 503000, 508000, 511048, 628750, 635000, 638810, 1006000, 1022096, 1257500, 1270000, 1277620, 1597025, 2012000, 2044192, 2515000, 2540000, 2555240, 3194050, 5030000, 5110480, 6388100, 7985125, 10060000, 10220960, 12776200, 15970250, 25552400, 31940500, 39925625, 51104800, 63881000, 79851250, 127762000, 159702500, 255524000, 319405000, 638810000, 1277620000]

約数ペア:

[(1, 1277620000), (2, 638810000), (4, 319405000), (5, 255524000), (8, 159702500), (10, 127762000), (16, 79851250), (20, 63881000), (25, 51104800), (32, 39925625), (40, 31940500), (50, 25552400), (80, 15970250), (100, 12776200), (125, 10220960), (127, 10060000), (160, 7985125), (200, 6388100), (250, 5110480), (254, 5030000), (400, 3194050), (500, 2555240), (503, 2540000), (508, 2515000), (625, 2044192), (635, 2012000), (800, 1597025), (1000, 1277620), (1006, 1270000), (1016, 1257500), (1250, 1022096), (1270, 1006000), (2000, 638810), (2012, 635000), (2032, 628750), (2500, 511048), (2515, 508000), (2540, 503000), (3175, 402400), (4000, 319405), (4024, 317500), (4064, 314375), (5000, 255524), (5030, 254000), (5080, 251500), (6350, 201200), (8048, 158750), (10000, 127762), (10060, 127000), (10160, 125750), (12575, 101600), (12700, 100600), (15875, 80480), (16096, 79375), (20000, 63881), (20120, 63500), (20320, 62875), (25150, 50800), (25400, 50300), (31750, 40240)]