18151160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 42720480

約数和(自身を除く): 24569320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 173, 215, 244, 305, 344, 346, 430, 488, 610, 692, 860, 865, 1220, 1384, 1720, 1730, 2440, 2623, 3460, 5246, 6920, 7439, 10492, 10553, 13115, 14878, 20984, 21106, 26230, 29756, 37195, 42212, 52460, 52765, 59512, 74390, 84424, 104920, 105530, 148780, 211060, 297560, 422120, 453779, 907558, 1815116, 2268895, 3630232, 4537790, 9075580, 18151160]

約数ペア:

[(1, 18151160), (2, 9075580), (4, 4537790), (5, 3630232), (8, 2268895), (10, 1815116), (20, 907558), (40, 453779), (43, 422120), (61, 297560), (86, 211060), (122, 148780), (172, 105530), (173, 104920), (215, 84424), (244, 74390), (305, 59512), (344, 52765), (346, 52460), (430, 42212), (488, 37195), (610, 29756), (692, 26230), (860, 21106), (865, 20984), (1220, 14878), (1384, 13115), (1720, 10553), (1730, 10492), (2440, 7439), (2623, 6920), (3460, 5246)]