161428000

素因数分解:

$2^5\times 5^3\times {\mathrm{40357}}^1$

素因数の和:40382

約数の個数: 48

約数和(自身を含む): 396638424

約数和(自身を除く): 235210424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 40357, 80714, 161428, 201785, 322856, 403570, 645712, 807140, 1008925, 1291424, 1614280, 2017850, 3228560, 4035700, 5044625, 6457120, 8071400, 10089250, 16142800, 20178500, 32285600, 40357000, 80714000, 161428000]

約数ペア:

[(1, 161428000), (2, 80714000), (4, 40357000), (5, 32285600), (8, 20178500), (10, 16142800), (16, 10089250), (20, 8071400), (25, 6457120), (32, 5044625), (40, 4035700), (50, 3228560), (80, 2017850), (100, 1614280), (125, 1291424), (160, 1008925), (200, 807140), (250, 645712), (400, 403570), (500, 322856), (800, 201785), (1000, 161428), (2000, 80714), (4000, 40357)]