209055720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{42491}}^1$

素因数の和:42546

約数の個数: 64

約数和(自身を含む): 642479040

約数和(自身を除く): 433423320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4920, 42491, 84982, 127473, 169964, 212455, 254946, 339928, 424910, 509892, 637365, 849820, 1019784, 1274730, 1699640, 1742131, 2549460, 3484262, 5098920, 5226393, 6968524, 8710655, 10452786, 13937048, 17421310, 20905572, 26131965, 34842620, 41811144, 52263930, 69685240, 104527860, 209055720]

約数ペア:

[(1, 209055720), (2, 104527860), (3, 69685240), (4, 52263930), (5, 41811144), (6, 34842620), (8, 26131965), (10, 20905572), (12, 17421310), (15, 13937048), (20, 10452786), (24, 8710655), (30, 6968524), (40, 5226393), (41, 5098920), (60, 3484262), (82, 2549460), (120, 1742131), (123, 1699640), (164, 1274730), (205, 1019784), (246, 849820), (328, 637365), (410, 509892), (492, 424910), (615, 339928), (820, 254946), (984, 212455), (1230, 169964), (1640, 127473), (2460, 84982), (4920, 42491)]