81738400

素因数分解:

$2^5\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1231}}^1$

素因数の和:1334

約数の個数: 72

約数和(自身を含む): 202112064

約数和(自身を除く): 120373664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 83, 100, 160, 166, 200, 332, 400, 415, 664, 800, 830, 1231, 1328, 1660, 2075, 2462, 2656, 3320, 4150, 4924, 6155, 6640, 8300, 9848, 12310, 13280, 16600, 19696, 24620, 30775, 33200, 39392, 49240, 61550, 66400, 98480, 102173, 123100, 196960, 204346, 246200, 408692, 492400, 510865, 817384, 984800, 1021730, 1634768, 2043460, 2554325, 3269536, 4086920, 5108650, 8173840, 10217300, 16347680, 20434600, 40869200, 81738400]

約数ペア:

[(1, 81738400), (2, 40869200), (4, 20434600), (5, 16347680), (8, 10217300), (10, 8173840), (16, 5108650), (20, 4086920), (25, 3269536), (32, 2554325), (40, 2043460), (50, 1634768), (80, 1021730), (83, 984800), (100, 817384), (160, 510865), (166, 492400), (200, 408692), (332, 246200), (400, 204346), (415, 196960), (664, 123100), (800, 102173), (830, 98480), (1231, 66400), (1328, 61550), (1660, 49240), (2075, 39392), (2462, 33200), (2656, 30775), (3320, 24620), (4150, 19696), (4924, 16600), (6155, 13280), (6640, 12310), (8300, 9848)]