21925865860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1989643}}^1$

素因数の和:1989700

約数の個数: 48

約数和(自身を含む): 50139028800

約数和(自身を除く): 28213162940

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 5510, 11020, 1989643, 3979286, 7958572, 9948215, 19896430, 37803217, 39792860, 57699647, 75606434, 115399294, 151212868, 189016085, 230798588, 288498235, 378032170, 576996470, 756064340, 1096293293, 1153992940, 2192586586, 4385173172, 5481466465, 10962932930, 21925865860]

約数ペア:

[(1, 21925865860), (2, 10962932930), (4, 5481466465), (5, 4385173172), (10, 2192586586), (19, 1153992940), (20, 1096293293), (29, 756064340), (38, 576996470), (58, 378032170), (76, 288498235), (95, 230798588), (116, 189016085), (145, 151212868), (190, 115399294), (290, 75606434), (380, 57699647), (551, 39792860), (580, 37803217), (1102, 19896430), (2204, 9948215), (2755, 7958572), (5510, 3979286), (11020, 1989643)]