20949400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 53010000

約数和(自身を除く): 32060600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 37, 38, 40, 50, 74, 76, 95, 100, 148, 149, 152, 185, 190, 200, 296, 298, 370, 380, 475, 596, 703, 740, 745, 760, 925, 950, 1192, 1406, 1480, 1490, 1850, 1900, 2812, 2831, 2980, 3515, 3700, 3725, 3800, 5513, 5624, 5662, 5960, 7030, 7400, 7450, 11026, 11324, 14060, 14155, 14900, 17575, 22052, 22648, 27565, 28120, 28310, 29800, 35150, 44104, 55130, 56620, 70300, 70775, 104747, 110260, 113240, 137825, 140600, 141550, 209494, 220520, 275650, 283100, 418988, 523735, 551300, 566200, 837976, 1047470, 1102600, 2094940, 2618675, 4189880, 5237350, 10474700, 20949400]

約数ペア:

[(1, 20949400), (2, 10474700), (4, 5237350), (5, 4189880), (8, 2618675), (10, 2094940), (19, 1102600), (20, 1047470), (25, 837976), (37, 566200), (38, 551300), (40, 523735), (50, 418988), (74, 283100), (76, 275650), (95, 220520), (100, 209494), (148, 141550), (149, 140600), (152, 137825), (185, 113240), (190, 110260), (200, 104747), (296, 70775), (298, 70300), (370, 56620), (380, 55130), (475, 44104), (596, 35150), (703, 29800), (740, 28310), (745, 28120), (760, 27565), (925, 22648), (950, 22052), (1192, 17575), (1406, 14900), (1480, 14155), (1490, 14060), (1850, 11324), (1900, 11026), (2812, 7450), (2831, 7400), (2980, 7030), (3515, 5960), (3700, 5662), (3725, 5624), (3800, 5513)]