16820440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4621}}^1$

素因数の和:4652

約数の個数: 64

約数和(自身を含む): 46589760

約数和(自身を除く): 29769320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4621, 9242, 18484, 23105, 32347, 36968, 46210, 60073, 64694, 92420, 120146, 129388, 161735, 184840, 240292, 258776, 300365, 323470, 420511, 480584, 600730, 646940, 841022, 1201460, 1293880, 1682044, 2102555, 2402920, 3364088, 4205110, 8410220, 16820440]

約数ペア:

[(1, 16820440), (2, 8410220), (4, 4205110), (5, 3364088), (7, 2402920), (8, 2102555), (10, 1682044), (13, 1293880), (14, 1201460), (20, 841022), (26, 646940), (28, 600730), (35, 480584), (40, 420511), (52, 323470), (56, 300365), (65, 258776), (70, 240292), (91, 184840), (104, 161735), (130, 129388), (140, 120146), (182, 92420), (260, 64694), (280, 60073), (364, 46210), (455, 36968), (520, 32347), (728, 23105), (910, 18484), (1820, 9242), (3640, 4621)]