640372448

素因数分解:

$2^5\times {\mathrm{199}}^1\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 1275523200

約数和(自身を除く): 635150752

約数列:

[1, 2, 4, 8, 16, 32, 199, 227, 398, 443, 454, 796, 886, 908, 1592, 1772, 1816, 3184, 3544, 3632, 6368, 7088, 7264, 14176, 45173, 88157, 90346, 100561, 176314, 180692, 201122, 352628, 361384, 402244, 705256, 722768, 804488, 1410512, 1445536, 1608976, 2821024, 3217952, 20011639, 40023278, 80046556, 160093112, 320186224, 640372448]

約数ペア:

[(1, 640372448), (2, 320186224), (4, 160093112), (8, 80046556), (16, 40023278), (32, 20011639), (199, 3217952), (227, 2821024), (398, 1608976), (443, 1445536), (454, 1410512), (796, 804488), (886, 722768), (908, 705256), (1592, 402244), (1772, 361384), (1816, 352628), (3184, 201122), (3544, 180692), (3632, 176314), (6368, 100561), (7088, 90346), (7264, 88157), (14176, 45173)]