20760840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:476

約数の個数: 128

約数和(自身を含む): 70848000

約数和(自身を除く): 50087160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 409, 423, 470, 540, 564, 705, 818, 846, 940, 1080, 1128, 1227, 1269, 1410, 1636, 1692, 1880, 2045, 2115, 2454, 2538, 2820, 3272, 3384, 3681, 4090, 4230, 4908, 5076, 5640, 6135, 6345, 7362, 8180, 8460, 9816, 10152, 11043, 12270, 12690, 14724, 16360, 16920, 18405, 19223, 22086, 24540, 25380, 29448, 36810, 38446, 44172, 49080, 50760, 55215, 57669, 73620, 76892, 88344, 96115, 110430, 115338, 147240, 153784, 173007, 192230, 220860, 230676, 288345, 346014, 384460, 441720, 461352, 519021, 576690, 692028, 768920, 865035, 1038042, 1153380, 1384056, 1730070, 2076084, 2306760, 2595105, 3460140, 4152168, 5190210, 6920280, 10380420, 20760840]

約数ペア:

[(1, 20760840), (2, 10380420), (3, 6920280), (4, 5190210), (5, 4152168), (6, 3460140), (8, 2595105), (9, 2306760), (10, 2076084), (12, 1730070), (15, 1384056), (18, 1153380), (20, 1038042), (24, 865035), (27, 768920), (30, 692028), (36, 576690), (40, 519021), (45, 461352), (47, 441720), (54, 384460), (60, 346014), (72, 288345), (90, 230676), (94, 220860), (108, 192230), (120, 173007), (135, 153784), (141, 147240), (180, 115338), (188, 110430), (216, 96115), (235, 88344), (270, 76892), (282, 73620), (360, 57669), (376, 55215), (409, 50760), (423, 49080), (470, 44172), (540, 38446), (564, 36810), (705, 29448), (818, 25380), (846, 24540), (940, 22086), (1080, 19223), (1128, 18405), (1227, 16920), (1269, 16360), (1410, 14724), (1636, 12690), (1692, 12270), (1880, 11043), (2045, 10152), (2115, 9816), (2454, 8460), (2538, 8180), (2820, 7362), (3272, 6345), (3384, 6135), (3681, 5640), (4090, 5076), (4230, 4908)]