20132747890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{673}}^1\times {\mathrm{1993}}^1$

素因数の和:2771

約数の個数: 64

約数和(自身を含む): 38705932800

約数和(自身を除く): 18573184910

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 673, 790, 1346, 1501, 1993, 3002, 3365, 3986, 6730, 7505, 9965, 12787, 15010, 19930, 25574, 37867, 53167, 63935, 75734, 106334, 127870, 157447, 189335, 265835, 314894, 378670, 531670, 787235, 1010173, 1341289, 1574470, 2020346, 2682578, 2991493, 5050865, 5982986, 6706445, 10101730, 13412890, 14957465, 25484491, 29914930, 50968982, 105961831, 127422455, 211923662, 254844910, 529809155, 1059618310, 2013274789, 4026549578, 10066373945, 20132747890]

約数ペア:

[(1, 20132747890), (2, 10066373945), (5, 4026549578), (10, 2013274789), (19, 1059618310), (38, 529809155), (79, 254844910), (95, 211923662), (158, 127422455), (190, 105961831), (395, 50968982), (673, 29914930), (790, 25484491), (1346, 14957465), (1501, 13412890), (1993, 10101730), (3002, 6706445), (3365, 5982986), (3986, 5050865), (6730, 2991493), (7505, 2682578), (9965, 2020346), (12787, 1574470), (15010, 1341289), (19930, 1010173), (25574, 787235), (37867, 531670), (53167, 378670), (63935, 314894), (75734, 265835), (106334, 189335), (127870, 157447)]