1260141520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{3607}}^1$

素因数の和:4028

約数の個数: 80

約数和(自身を含む): 3205116288

約数和(自身を除く): 1944974768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 397, 440, 794, 880, 1588, 1985, 3176, 3607, 3970, 4367, 6352, 7214, 7940, 8734, 14428, 15880, 17468, 18035, 21835, 28856, 31760, 34936, 36070, 39677, 43670, 57712, 69872, 72140, 79354, 87340, 144280, 158708, 174680, 198385, 288560, 317416, 349360, 396770, 634832, 793540, 1431979, 1587080, 2863958, 3174160, 5727916, 7159895, 11455832, 14319790, 15751769, 22911664, 28639580, 31503538, 57279160, 63007076, 78758845, 114558320, 126014152, 157517690, 252028304, 315035380, 630070760, 1260141520]

約数ペア:

[(1, 1260141520), (2, 630070760), (4, 315035380), (5, 252028304), (8, 157517690), (10, 126014152), (11, 114558320), (16, 78758845), (20, 63007076), (22, 57279160), (40, 31503538), (44, 28639580), (55, 22911664), (80, 15751769), (88, 14319790), (110, 11455832), (176, 7159895), (220, 5727916), (397, 3174160), (440, 2863958), (794, 1587080), (880, 1431979), (1588, 793540), (1985, 634832), (3176, 396770), (3607, 349360), (3970, 317416), (4367, 288560), (6352, 198385), (7214, 174680), (7940, 158708), (8734, 144280), (14428, 87340), (15880, 79354), (17468, 72140), (18035, 69872), (21835, 57712), (28856, 43670), (31760, 39677), (34936, 36070)]