145409980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{541}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 311411520

約数和(自身を除く): 166001540

約数列:

[1, 2, 4, 5, 10, 20, 89, 151, 178, 302, 356, 445, 541, 604, 755, 890, 1082, 1510, 1780, 2164, 2705, 3020, 5410, 10820, 13439, 26878, 48149, 53756, 67195, 81691, 96298, 134390, 163382, 192596, 240745, 268780, 326764, 408455, 481490, 816910, 962980, 1633820, 7270499, 14540998, 29081996, 36352495, 72704990, 145409980]

約数ペア:

[(1, 145409980), (2, 72704990), (4, 36352495), (5, 29081996), (10, 14540998), (20, 7270499), (89, 1633820), (151, 962980), (178, 816910), (302, 481490), (356, 408455), (445, 326764), (541, 268780), (604, 240745), (755, 192596), (890, 163382), (1082, 134390), (1510, 96298), (1780, 81691), (2164, 67195), (2705, 53756), (3020, 48149), (5410, 26878), (10820, 13439)]