513674380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{181}}^1\times {\mathrm{491}}^1$

素因数の和:715

約数の個数: 72

約数和(自身を含む): 1154580336

約数和(自身を除く): 640905956

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 289, 340, 362, 491, 578, 724, 905, 982, 1156, 1445, 1810, 1964, 2455, 2890, 3077, 3620, 4910, 5780, 6154, 8347, 9820, 12308, 15385, 16694, 30770, 33388, 41735, 52309, 61540, 83470, 88871, 104618, 141899, 166940, 177742, 209236, 261545, 283798, 355484, 444355, 523090, 567596, 709495, 888710, 1046180, 1418990, 1510807, 1777420, 2837980, 3021614, 6043228, 7554035, 15108070, 25683719, 30216140, 51367438, 102734876, 128418595, 256837190, 513674380]

約数ペア:

[(1, 513674380), (2, 256837190), (4, 128418595), (5, 102734876), (10, 51367438), (17, 30216140), (20, 25683719), (34, 15108070), (68, 7554035), (85, 6043228), (170, 3021614), (181, 2837980), (289, 1777420), (340, 1510807), (362, 1418990), (491, 1046180), (578, 888710), (724, 709495), (905, 567596), (982, 523090), (1156, 444355), (1445, 355484), (1810, 283798), (1964, 261545), (2455, 209236), (2890, 177742), (3077, 166940), (3620, 141899), (4910, 104618), (5780, 88871), (6154, 83470), (8347, 61540), (9820, 52309), (12308, 41735), (15385, 33388), (16694, 30770)]