131545778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 258720000

約数和(自身を除く): 127174222

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 109, 133, 182, 218, 247, 266, 349, 494, 698, 763, 1417, 1526, 1729, 2071, 2443, 2834, 3458, 4142, 4537, 4886, 6631, 9074, 9919, 13262, 14497, 19838, 26923, 28994, 31759, 38041, 46417, 53846, 63518, 76082, 86203, 92834, 172406, 188461, 266287, 376922, 494533, 532574, 603421, 722779, 989066, 1206842, 1445558, 3461731, 5059453, 6923462, 9396127, 10118906, 18792254, 65772889, 131545778]

約数ペア:

[(1, 131545778), (2, 65772889), (7, 18792254), (13, 10118906), (14, 9396127), (19, 6923462), (26, 5059453), (38, 3461731), (91, 1445558), (109, 1206842), (133, 989066), (182, 722779), (218, 603421), (247, 532574), (266, 494533), (349, 376922), (494, 266287), (698, 188461), (763, 172406), (1417, 92834), (1526, 86203), (1729, 76082), (2071, 63518), (2443, 53846), (2834, 46417), (3458, 38041), (4142, 31759), (4537, 28994), (4886, 26923), (6631, 19838), (9074, 14497), (9919, 13262)]