84620720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25799}}^1$

素因数の和:25853

約数の個数: 40

約数和(自身を含む): 201549600

約数和(自身を除く): 116928880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 25799, 51598, 103196, 128995, 206392, 257990, 412784, 515980, 1031960, 1057759, 2063920, 2115518, 4231036, 5288795, 8462072, 10577590, 16924144, 21155180, 42310360, 84620720]

約数ペア:

[(1, 84620720), (2, 42310360), (4, 21155180), (5, 16924144), (8, 10577590), (10, 8462072), (16, 5288795), (20, 4231036), (40, 2115518), (41, 2063920), (80, 1057759), (82, 1031960), (164, 515980), (205, 412784), (328, 257990), (410, 206392), (656, 128995), (820, 103196), (1640, 51598), (3280, 25799)]