28684220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 63479808

約数和(自身を除く): 34795588

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 127, 230, 254, 460, 491, 508, 635, 982, 1270, 1964, 2455, 2540, 2921, 4910, 5842, 9820, 11293, 11684, 14605, 22586, 29210, 45172, 56465, 58420, 62357, 112930, 124714, 225860, 249428, 311785, 623570, 1247140, 1434211, 2868422, 5736844, 7171055, 14342110, 28684220]

約数ペア:

[(1, 28684220), (2, 14342110), (4, 7171055), (5, 5736844), (10, 2868422), (20, 1434211), (23, 1247140), (46, 623570), (92, 311785), (115, 249428), (127, 225860), (230, 124714), (254, 112930), (460, 62357), (491, 58420), (508, 56465), (635, 45172), (982, 29210), (1270, 22586), (1964, 14605), (2455, 11684), (2540, 11293), (2921, 9820), (4910, 5842)]