20496720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2083}}^1$

素因数の和:2140

約数の個数: 80

約数和(自身を含む): 65120832

約数和(自身を除く): 44624112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2083, 2460, 3280, 4166, 4920, 6249, 8332, 9840, 10415, 12498, 16664, 20830, 24996, 31245, 33328, 41660, 49992, 62490, 83320, 85403, 99984, 124980, 166640, 170806, 249960, 256209, 341612, 427015, 499920, 512418, 683224, 854030, 1024836, 1281045, 1366448, 1708060, 2049672, 2562090, 3416120, 4099344, 5124180, 6832240, 10248360, 20496720]

約数ペア:

[(1, 20496720), (2, 10248360), (3, 6832240), (4, 5124180), (5, 4099344), (6, 3416120), (8, 2562090), (10, 2049672), (12, 1708060), (15, 1366448), (16, 1281045), (20, 1024836), (24, 854030), (30, 683224), (40, 512418), (41, 499920), (48, 427015), (60, 341612), (80, 256209), (82, 249960), (120, 170806), (123, 166640), (164, 124980), (205, 99984), (240, 85403), (246, 83320), (328, 62490), (410, 49992), (492, 41660), (615, 33328), (656, 31245), (820, 24996), (984, 20830), (1230, 16664), (1640, 12498), (1968, 10415), (2083, 9840), (2460, 8332), (3280, 6249), (4166, 4920)]