4173440

素因数分解:

$2^7\times 5^1\times {\mathrm{6521}}^1$

素因数の和:6540

約数の個数: 32

約数和(自身を含む): 9978660

約数和(自身を除く): 5805220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6521, 13042, 26084, 32605, 52168, 65210, 104336, 130420, 208672, 260840, 417344, 521680, 834688, 1043360, 2086720, 4173440]

約数ペア:

[(1, 4173440), (2, 2086720), (4, 1043360), (5, 834688), (8, 521680), (10, 417344), (16, 260840), (20, 208672), (32, 130420), (40, 104336), (64, 65210), (80, 52168), (128, 32605), (160, 26084), (320, 13042), (640, 6521)]