287734715

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1877}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 380768256

約数和(自身を除く): 93033541

約数列:

[1, 5, 23, 31, 43, 115, 155, 215, 713, 989, 1333, 1877, 3565, 4945, 6665, 9385, 30659, 43171, 58187, 80711, 153295, 215855, 290935, 403555, 1338301, 1856353, 2502041, 6691505, 9281765, 12510205, 57546943, 287734715]

約数ペア:

[(1, 287734715), (5, 57546943), (23, 12510205), (31, 9281765), (43, 6691505), (115, 2502041), (155, 1856353), (215, 1338301), (713, 403555), (989, 290935), (1333, 215855), (1877, 153295), (3565, 80711), (4945, 58187), (6665, 43171), (9385, 30659)]