20178091450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{621821}}^1$

素因数の和:621903

約数の個数: 48

約数和(自身を含む): 41637201120

約数和(自身を除く): 21459109670

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 59, 110, 118, 275, 295, 550, 590, 649, 1298, 1475, 2950, 3245, 6490, 16225, 32450, 621821, 1243642, 3109105, 6218210, 6840031, 13680062, 15545525, 31091050, 34200155, 36687439, 68400310, 73374878, 171000775, 183437195, 342001550, 366874390, 403561829, 807123658, 917185975, 1834371950, 2017809145, 4035618290, 10089045725, 20178091450]

約数ペア:

[(1, 20178091450), (2, 10089045725), (5, 4035618290), (10, 2017809145), (11, 1834371950), (22, 917185975), (25, 807123658), (50, 403561829), (55, 366874390), (59, 342001550), (110, 183437195), (118, 171000775), (275, 73374878), (295, 68400310), (550, 36687439), (590, 34200155), (649, 31091050), (1298, 15545525), (1475, 13680062), (2950, 6840031), (3245, 6218210), (6490, 3109105), (16225, 1243642), (32450, 621821)]