1688895880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1703

約数の個数: 128

約数和(自身を含む): 4488307200

約数和(自身を除く): 2799411320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 73, 106, 140, 146, 212, 265, 280, 292, 365, 371, 424, 511, 530, 584, 730, 742, 1022, 1060, 1460, 1484, 1559, 1855, 2044, 2120, 2555, 2920, 2968, 3118, 3710, 3869, 4088, 5110, 6236, 7420, 7738, 7795, 10220, 10913, 12472, 14840, 15476, 15590, 19345, 20440, 21826, 27083, 30952, 31180, 38690, 43652, 54166, 54565, 62360, 77380, 82627, 87304, 108332, 109130, 113807, 135415, 154760, 165254, 216664, 218260, 227614, 270830, 330508, 413135, 436520, 455228, 541660, 569035, 578389, 661016, 796649, 826270, 910456, 1083320, 1138070, 1156778, 1593298, 1652540, 2276140, 2313556, 2891945, 3186596, 3305080, 3983245, 4552280, 4627112, 5783890, 6031771, 6373192, 7966490, 11567780, 12063542, 15932980, 23135560, 24127084, 30158855, 31865960, 42222397, 48254168, 60317710, 84444794, 120635420, 168889588, 211111985, 241270840, 337779176, 422223970, 844447940, 1688895880]

約数ペア:

[(1, 1688895880), (2, 844447940), (4, 422223970), (5, 337779176), (7, 241270840), (8, 211111985), (10, 168889588), (14, 120635420), (20, 84444794), (28, 60317710), (35, 48254168), (40, 42222397), (53, 31865960), (56, 30158855), (70, 24127084), (73, 23135560), (106, 15932980), (140, 12063542), (146, 11567780), (212, 7966490), (265, 6373192), (280, 6031771), (292, 5783890), (365, 4627112), (371, 4552280), (424, 3983245), (511, 3305080), (530, 3186596), (584, 2891945), (730, 2313556), (742, 2276140), (1022, 1652540), (1060, 1593298), (1460, 1156778), (1484, 1138070), (1559, 1083320), (1855, 910456), (2044, 826270), (2120, 796649), (2555, 661016), (2920, 578389), (2968, 569035), (3118, 541660), (3710, 455228), (3869, 436520), (4088, 413135), (5110, 330508), (6236, 270830), (7420, 227614), (7738, 218260), (7795, 216664), (10220, 165254), (10913, 154760), (12472, 135415), (14840, 113807), (15476, 109130), (15590, 108332), (19345, 87304), (20440, 82627), (21826, 77380), (27083, 62360), (30952, 54565), (31180, 54166), (38690, 43652)]