18624520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 45198000

約数和(自身を除く): 26573480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 449, 488, 610, 680, 898, 1037, 1220, 1796, 2074, 2245, 2440, 3592, 4148, 4490, 5185, 7633, 8296, 8980, 10370, 15266, 17960, 20740, 27389, 30532, 38165, 41480, 54778, 61064, 76330, 109556, 136945, 152660, 219112, 273890, 305320, 465613, 547780, 931226, 1095560, 1862452, 2328065, 3724904, 4656130, 9312260, 18624520]

約数ペア:

[(1, 18624520), (2, 9312260), (4, 4656130), (5, 3724904), (8, 2328065), (10, 1862452), (17, 1095560), (20, 931226), (34, 547780), (40, 465613), (61, 305320), (68, 273890), (85, 219112), (122, 152660), (136, 136945), (170, 109556), (244, 76330), (305, 61064), (340, 54778), (449, 41480), (488, 38165), (610, 30532), (680, 27389), (898, 20740), (1037, 17960), (1220, 15266), (1796, 10370), (2074, 8980), (2245, 8296), (2440, 7633), (3592, 5185), (4148, 4490)]