1311789020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1237}}^1\times {\mathrm{3119}}^1$

素因数の和:4382

約数の個数: 48

約数和(自身を含む): 2920095360

約数和(自身を除く): 1608306340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1237, 2474, 3119, 4948, 6185, 6238, 12370, 12476, 15595, 21029, 24740, 31190, 42058, 53023, 62380, 84116, 105145, 106046, 210290, 212092, 265115, 420580, 530230, 1060460, 3858203, 7716406, 15432812, 19291015, 38582030, 65589451, 77164060, 131178902, 262357804, 327947255, 655894510, 1311789020]

約数ペア:

[(1, 1311789020), (2, 655894510), (4, 327947255), (5, 262357804), (10, 131178902), (17, 77164060), (20, 65589451), (34, 38582030), (68, 19291015), (85, 15432812), (170, 7716406), (340, 3858203), (1237, 1060460), (2474, 530230), (3119, 420580), (4948, 265115), (6185, 212092), (6238, 210290), (12370, 106046), (12476, 105145), (15595, 84116), (21029, 62380), (24740, 53023), (31190, 42058)]