204080900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2903}}^1$

素因数の和:2973

約数の個数: 72

約数和(自身を含む): 478927680

約数和(自身を除く): 274846780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 185, 190, 370, 380, 475, 703, 740, 925, 950, 1406, 1850, 1900, 2812, 2903, 3515, 3700, 5806, 7030, 11612, 14060, 14515, 17575, 29030, 35150, 55157, 58060, 70300, 72575, 107411, 110314, 145150, 214822, 220628, 275785, 290300, 429644, 537055, 551570, 1074110, 1103140, 1378925, 2040809, 2148220, 2685275, 2757850, 4081618, 5370550, 5515700, 8163236, 10204045, 10741100, 20408090, 40816180, 51020225, 102040450, 204080900]

約数ペア:

[(1, 204080900), (2, 102040450), (4, 51020225), (5, 40816180), (10, 20408090), (19, 10741100), (20, 10204045), (25, 8163236), (37, 5515700), (38, 5370550), (50, 4081618), (74, 2757850), (76, 2685275), (95, 2148220), (100, 2040809), (148, 1378925), (185, 1103140), (190, 1074110), (370, 551570), (380, 537055), (475, 429644), (703, 290300), (740, 275785), (925, 220628), (950, 214822), (1406, 145150), (1850, 110314), (1900, 107411), (2812, 72575), (2903, 70300), (3515, 58060), (3700, 55157), (5806, 35150), (7030, 29030), (11612, 17575), (14060, 14515)]