20020505520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{809891}}^1$

素因数の和:810010

約数の個数: 80

約数和(自身を含む): 62666203392

約数和(自身を除く): 42645697872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 103, 120, 206, 240, 309, 412, 515, 618, 824, 1030, 1236, 1545, 1648, 2060, 2472, 3090, 4120, 4944, 6180, 8240, 12360, 24720, 809891, 1619782, 2429673, 3239564, 4049455, 4859346, 6479128, 8098910, 9718692, 12148365, 12958256, 16197820, 19437384, 24296730, 32395640, 38874768, 48593460, 64791280, 83418773, 97186920, 166837546, 194373840, 250256319, 333675092, 417093865, 500512638, 667350184, 834187730, 1001025276, 1251281595, 1334700368, 1668375460, 2002050552, 2502563190, 3336750920, 4004101104, 5005126380, 6673501840, 10010252760, 20020505520]

約数ペア:

[(1, 20020505520), (2, 10010252760), (3, 6673501840), (4, 5005126380), (5, 4004101104), (6, 3336750920), (8, 2502563190), (10, 2002050552), (12, 1668375460), (15, 1334700368), (16, 1251281595), (20, 1001025276), (24, 834187730), (30, 667350184), (40, 500512638), (48, 417093865), (60, 333675092), (80, 250256319), (103, 194373840), (120, 166837546), (206, 97186920), (240, 83418773), (309, 64791280), (412, 48593460), (515, 38874768), (618, 32395640), (824, 24296730), (1030, 19437384), (1236, 16197820), (1545, 12958256), (1648, 12148365), (2060, 9718692), (2472, 8098910), (3090, 6479128), (4120, 4859346), (4944, 4049455), (6180, 3239564), (8240, 2429673), (12360, 1619782), (24720, 809891)]