64535020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{15439}}^1$

素因数の和:15478

約数の個数: 48

約数和(自身を含む): 155635200

約数和(自身を除く): 91100180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 15439, 30878, 61756, 77195, 154390, 169829, 293341, 308780, 339658, 586682, 679316, 849145, 1173364, 1466705, 1698290, 2933410, 3226751, 3396580, 5866820, 6453502, 12907004, 16133755, 32267510, 64535020]

約数ペア:

[(1, 64535020), (2, 32267510), (4, 16133755), (5, 12907004), (10, 6453502), (11, 5866820), (19, 3396580), (20, 3226751), (22, 2933410), (38, 1698290), (44, 1466705), (55, 1173364), (76, 849145), (95, 679316), (110, 586682), (190, 339658), (209, 308780), (220, 293341), (380, 169829), (418, 154390), (836, 77195), (1045, 61756), (2090, 30878), (4180, 15439)]