2128291220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{158591}}^1$

素因数の和:158672

約数の個数: 48

約数和(自身を含む): 4955682816

約数和(自身を除く): 2827391596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 158591, 317182, 634364, 792955, 1585910, 1744501, 3171820, 3489002, 6978004, 8722505, 9674051, 17445010, 19348102, 34890020, 38696204, 48370255, 96740510, 106414561, 193481020, 212829122, 425658244, 532072805, 1064145610, 2128291220]

約数ペア:

[(1, 2128291220), (2, 1064145610), (4, 532072805), (5, 425658244), (10, 212829122), (11, 193481020), (20, 106414561), (22, 96740510), (44, 48370255), (55, 38696204), (61, 34890020), (110, 19348102), (122, 17445010), (220, 9674051), (244, 8722505), (305, 6978004), (610, 3489002), (671, 3171820), (1220, 1744501), (1342, 1585910), (2684, 792955), (3355, 634364), (6710, 317182), (13420, 158591)]