28821900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{191}}^1\times {\mathrm{503}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 83994624

約数和(自身を除く): 55172724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 191, 300, 382, 503, 573, 764, 955, 1006, 1146, 1509, 1910, 2012, 2292, 2515, 2865, 3018, 3820, 4775, 5030, 5730, 6036, 7545, 9550, 10060, 11460, 12575, 14325, 15090, 19100, 25150, 28650, 30180, 37725, 50300, 57300, 75450, 96073, 150900, 192146, 288219, 384292, 480365, 576438, 960730, 1152876, 1441095, 1921460, 2401825, 2882190, 4803650, 5764380, 7205475, 9607300, 14410950, 28821900]

約数ペア:

[(1, 28821900), (2, 14410950), (3, 9607300), (4, 7205475), (5, 5764380), (6, 4803650), (10, 2882190), (12, 2401825), (15, 1921460), (20, 1441095), (25, 1152876), (30, 960730), (50, 576438), (60, 480365), (75, 384292), (100, 288219), (150, 192146), (191, 150900), (300, 96073), (382, 75450), (503, 57300), (573, 50300), (764, 37725), (955, 30180), (1006, 28650), (1146, 25150), (1509, 19100), (1910, 15090), (2012, 14325), (2292, 12575), (2515, 11460), (2865, 10060), (3018, 9550), (3820, 7545), (4775, 6036), (5030, 5730)]