147777380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1361}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 319198320

約数和(自身を除く): 171420940

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 610, 890, 1220, 1361, 1780, 2722, 5429, 5444, 6805, 10858, 13610, 21716, 27145, 27220, 54290, 83021, 108580, 121129, 166042, 242258, 332084, 415105, 484516, 605645, 830210, 1211290, 1660420, 2422580, 7388869, 14777738, 29555476, 36944345, 73888690, 147777380]

約数ペア:

[(1, 147777380), (2, 73888690), (4, 36944345), (5, 29555476), (10, 14777738), (20, 7388869), (61, 2422580), (89, 1660420), (122, 1211290), (178, 830210), (244, 605645), (305, 484516), (356, 415105), (445, 332084), (610, 242258), (890, 166042), (1220, 121129), (1361, 108580), (1780, 83021), (2722, 54290), (5429, 27220), (5444, 27145), (6805, 21716), (10858, 13610)]