19139680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:788

約数の個数: 96

約数和(自身を含む): 53996544

約数和(自身を除く): 34856864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 743, 805, 920, 1120, 1288, 1486, 1610, 1840, 2576, 2972, 3220, 3680, 3715, 5152, 5201, 5944, 6440, 7430, 10402, 11888, 12880, 14860, 17089, 20804, 23776, 25760, 26005, 29720, 34178, 41608, 52010, 59440, 68356, 83216, 85445, 104020, 118880, 119623, 136712, 166432, 170890, 208040, 239246, 273424, 341780, 416080, 478492, 546848, 598115, 683560, 832160, 956984, 1196230, 1367120, 1913968, 2392460, 2734240, 3827936, 4784920, 9569840, 19139680]

約数ペア:

[(1, 19139680), (2, 9569840), (4, 4784920), (5, 3827936), (7, 2734240), (8, 2392460), (10, 1913968), (14, 1367120), (16, 1196230), (20, 956984), (23, 832160), (28, 683560), (32, 598115), (35, 546848), (40, 478492), (46, 416080), (56, 341780), (70, 273424), (80, 239246), (92, 208040), (112, 170890), (115, 166432), (140, 136712), (160, 119623), (161, 118880), (184, 104020), (224, 85445), (230, 83216), (280, 68356), (322, 59440), (368, 52010), (460, 41608), (560, 34178), (644, 29720), (736, 26005), (743, 25760), (805, 23776), (920, 20804), (1120, 17089), (1288, 14860), (1486, 12880), (1610, 11888), (1840, 10402), (2576, 7430), (2972, 6440), (3220, 5944), (3680, 5201), (3715, 5152)]