212915220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{506941}}^1$

素因数の和:506960

約数の個数: 48

約数和(自身を含む): 681330048

約数和(自身を除く): 468414828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 506941, 1013882, 1520823, 2027764, 2534705, 3041646, 3548587, 5069410, 6083292, 7097174, 7604115, 10138820, 10645761, 14194348, 15208230, 17742935, 21291522, 30416460, 35485870, 42583044, 53228805, 70971740, 106457610, 212915220]

約数ペア:

[(1, 212915220), (2, 106457610), (3, 70971740), (4, 53228805), (5, 42583044), (6, 35485870), (7, 30416460), (10, 21291522), (12, 17742935), (14, 15208230), (15, 14194348), (20, 10645761), (21, 10138820), (28, 7604115), (30, 7097174), (35, 6083292), (42, 5069410), (60, 3548587), (70, 3041646), (84, 2534705), (105, 2027764), (140, 1520823), (210, 1013882), (420, 506941)]