18665654720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3070009}}^1$

素因数の和:3070045

約数の個数: 56

約数和(自身を含む): 46786952400

約数和(自身を除く): 28121297680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 3070009, 6140018, 12280036, 15350045, 24560072, 30700090, 49120144, 58330171, 61400180, 98240288, 116660342, 122800360, 196480576, 233320684, 245600720, 291650855, 466641368, 491201440, 583301710, 933282736, 982402880, 1166603420, 1866565472, 2333206840, 3733130944, 4666413680, 9332827360, 18665654720]

約数ペア:

[(1, 18665654720), (2, 9332827360), (4, 4666413680), (5, 3733130944), (8, 2333206840), (10, 1866565472), (16, 1166603420), (19, 982402880), (20, 933282736), (32, 583301710), (38, 491201440), (40, 466641368), (64, 291650855), (76, 245600720), (80, 233320684), (95, 196480576), (152, 122800360), (160, 116660342), (190, 98240288), (304, 61400180), (320, 58330171), (380, 49120144), (608, 30700090), (760, 24560072), (1216, 15350045), (1520, 12280036), (3040, 6140018), (6080, 3070009)]