15653620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 34428240

約数和(自身を除く): 18774620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 137, 145, 197, 274, 290, 394, 548, 580, 685, 788, 985, 1370, 1970, 2740, 3940, 3973, 5713, 7946, 11426, 15892, 19865, 22852, 26989, 28565, 39730, 53978, 57130, 79460, 107956, 114260, 134945, 269890, 539780, 782681, 1565362, 3130724, 3913405, 7826810, 15653620]

約数ペア:

[(1, 15653620), (2, 7826810), (4, 3913405), (5, 3130724), (10, 1565362), (20, 782681), (29, 539780), (58, 269890), (116, 134945), (137, 114260), (145, 107956), (197, 79460), (274, 57130), (290, 53978), (394, 39730), (548, 28565), (580, 26989), (685, 22852), (788, 19865), (985, 15892), (1370, 11426), (1970, 7946), (2740, 5713), (3940, 3973)]