78077580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26557}}^1$

素因数の和:26583

約数の個数: 72

約数和(自身を含む): 254319408

約数和(自身を除く): 176241828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26557, 53114, 79671, 106228, 132785, 159342, 185899, 265570, 318684, 371798, 398355, 531140, 557697, 743596, 796710, 929495, 1115394, 1301293, 1593420, 1858990, 2230788, 2602586, 2788485, 3717980, 3903879, 5205172, 5576970, 6506465, 7807758, 11153940, 13012930, 15615516, 19519395, 26025860, 39038790, 78077580]

約数ペア:

[(1, 78077580), (2, 39038790), (3, 26025860), (4, 19519395), (5, 15615516), (6, 13012930), (7, 11153940), (10, 7807758), (12, 6506465), (14, 5576970), (15, 5205172), (20, 3903879), (21, 3717980), (28, 2788485), (30, 2602586), (35, 2230788), (42, 1858990), (49, 1593420), (60, 1301293), (70, 1115394), (84, 929495), (98, 796710), (105, 743596), (140, 557697), (147, 531140), (196, 398355), (210, 371798), (245, 318684), (294, 265570), (420, 185899), (490, 159342), (588, 132785), (735, 106228), (980, 79671), (1470, 53114), (2940, 26557)]