20894880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 66624768

約数和(自身を除く): 45729888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 101, 120, 160, 202, 240, 303, 404, 431, 480, 505, 606, 808, 862, 1010, 1212, 1293, 1515, 1616, 1724, 2020, 2155, 2424, 2586, 3030, 3232, 3448, 4040, 4310, 4848, 5172, 6060, 6465, 6896, 8080, 8620, 9696, 10344, 12120, 12930, 13792, 16160, 17240, 20688, 24240, 25860, 34480, 41376, 43531, 48480, 51720, 68960, 87062, 103440, 130593, 174124, 206880, 217655, 261186, 348248, 435310, 522372, 652965, 696496, 870620, 1044744, 1305930, 1392992, 1741240, 2089488, 2611860, 3482480, 4178976, 5223720, 6964960, 10447440, 20894880]

約数ペア:

[(1, 20894880), (2, 10447440), (3, 6964960), (4, 5223720), (5, 4178976), (6, 3482480), (8, 2611860), (10, 2089488), (12, 1741240), (15, 1392992), (16, 1305930), (20, 1044744), (24, 870620), (30, 696496), (32, 652965), (40, 522372), (48, 435310), (60, 348248), (80, 261186), (96, 217655), (101, 206880), (120, 174124), (160, 130593), (202, 103440), (240, 87062), (303, 68960), (404, 51720), (431, 48480), (480, 43531), (505, 41376), (606, 34480), (808, 25860), (862, 24240), (1010, 20688), (1212, 17240), (1293, 16160), (1515, 13792), (1616, 12930), (1724, 12120), (2020, 10344), (2155, 9696), (2424, 8620), (2586, 8080), (3030, 6896), (3232, 6465), (3448, 6060), (4040, 5172), (4310, 4848)]