30905000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{883}}^1$

素因数の和:916

約数の個数: 80

約数和(自身を含む): 82848480

約数和(自身を除く): 51943480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 625, 700, 875, 883, 1000, 1250, 1400, 1750, 1766, 2500, 3500, 3532, 4375, 4415, 5000, 6181, 7000, 7064, 8750, 8830, 12362, 17500, 17660, 22075, 24724, 30905, 35000, 35320, 44150, 49448, 61810, 88300, 110375, 123620, 154525, 176600, 220750, 247240, 309050, 441500, 551875, 618100, 772625, 883000, 1103750, 1236200, 1545250, 2207500, 3090500, 3863125, 4415000, 6181000, 7726250, 15452500, 30905000]

約数ペア:

[(1, 30905000), (2, 15452500), (4, 7726250), (5, 6181000), (7, 4415000), (8, 3863125), (10, 3090500), (14, 2207500), (20, 1545250), (25, 1236200), (28, 1103750), (35, 883000), (40, 772625), (50, 618100), (56, 551875), (70, 441500), (100, 309050), (125, 247240), (140, 220750), (175, 176600), (200, 154525), (250, 123620), (280, 110375), (350, 88300), (500, 61810), (625, 49448), (700, 44150), (875, 35320), (883, 35000), (1000, 30905), (1250, 24724), (1400, 22075), (1750, 17660), (1766, 17500), (2500, 12362), (3500, 8830), (3532, 8750), (4375, 7064), (4415, 7000), (5000, 6181)]