20178707928

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{161471}}^1$

素因数の和:161648

約数の個数: 64

約数和(自身を含む): 52084408320

約数和(自身を除く): 31905700392

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 127, 164, 246, 254, 328, 381, 492, 508, 762, 984, 1016, 1524, 3048, 5207, 10414, 15621, 20828, 31242, 41656, 62484, 124968, 161471, 322942, 484413, 645884, 968826, 1291768, 1937652, 3875304, 6620311, 13240622, 19860933, 20506817, 26481244, 39721866, 41013634, 52962488, 61520451, 79443732, 82027268, 123040902, 158887464, 164054536, 246081804, 492163608, 840779497, 1681558994, 2522338491, 3363117988, 5044676982, 6726235976, 10089353964, 20178707928]

約数ペア:

[(1, 20178707928), (2, 10089353964), (3, 6726235976), (4, 5044676982), (6, 3363117988), (8, 2522338491), (12, 1681558994), (24, 840779497), (41, 492163608), (82, 246081804), (123, 164054536), (127, 158887464), (164, 123040902), (246, 82027268), (254, 79443732), (328, 61520451), (381, 52962488), (492, 41013634), (508, 39721866), (762, 26481244), (984, 20506817), (1016, 19860933), (1524, 13240622), (3048, 6620311), (5207, 3875304), (10414, 1937652), (15621, 1291768), (20828, 968826), (31242, 645884), (41656, 484413), (62484, 322942), (124968, 161471)]